A woman found a snail in her drink. It was in a bottle of ginger beer. This made her very sick. She went to a big court. The court said makers must be careful. This helps keep us safe today. Do you like ginger beer?
Long ago, a woman went to a cafe. She ordered a ginger beer drink. A snail was hiding in the dark bottle.
In 1928, a woman named May Donoghue went to a cafe in Paisley. 
At that time, the law was different. You usually needed a contract to sue a maker. Since Donoghue did not buy the drink herself, she had no contract. She had to prove the maker was negligent. Negligence means failing to take proper care.
The case went to the House of Lords. This was a very high court.
The case of Donoghue v Stevenson is a very famous legal story. It is often called the "Paisley Snail" case. This case changed how laws work for everyone. It helped create the modern rule of negligence. Negligence is when someone is not careful enough. This lack of care can cause harm to others. Because of this case, makers must be careful. They must make sure their products are safe for people to use.
The story began on August 26, 1928. May Donoghue went to the Wellmeadow Café in Paisley, Scotland. 
At that time, the law was very strict. Usually, you could only sue if you had a contract. A contract is a formal agreement to buy something. Donoghue did not buy the drink herself. Her friend had paid for the order. This meant Donoghue had no contract with the café owner. She also had no contract with the maker, David Stevenson. Before this, people mostly sued for direct physical harm. Being made ill by a bad drink was a new problem. The courts had to decide if a maker owed a duty to a stranger.
David Stevenson ran a company in Paisley. He made ginger beer and lemonade at Glen Lane. 

The House of Lords made a huge decision. They ruled that the manufacturer owed a duty of care to the consumer. This means makers must think about their customers. They must act in a way that prevents foreseeable harm. This decision created a new type of legal responsibility. It moved the law toward a fault-based system. Now, if a person is careless and causes injury, they can be held responsible. This single case changed the rules for many countries around the world. It protects people every time they buy something from a store.
Donoghue v Stevenson [1932] AC 562 is a landmark legal decision. It was decided by the House of Lords in the United Kingdom. This case changed how the law handles negligence. Negligence is a failure to take proper care. This case established the modern duty of care. A duty of care is a legal obligation to avoid harming others. It serves as the foundation for common law jurisdictions worldwide.
The case began with a specific event in Paisley, Renfrewshire. On August 26, 1928, May Donoghue visited the Wellmeadow Café. She ordered a Scotsman ice cream float. This drink was a mixture of ice cream and ginger beer. The ginger beer was in a brown, opaque bottle. This means the bottle was dark and cloudy. No one could see through it. A friend poured the remaining ginger beer into a tumbler. A decomposed snail floated out of the bottle.
Mrs. Donoghue became very ill after this event. She suffered from severe gastroenteritis and shock. She sought medical treatment at the Glasgow Royal Infirmary. She decided to sue the manufacturer, David Stevenson. Stevenson ran a company at 11 and 12 Glen Lane in Paisley. He produced both ginger beer and lemonade. Donoghue claimed he breached a duty of care. She argued he should have a system to ensure bottles are clean. She claimed snails had easy access to the bottles. 
Before this case, the law was very different. Most people could only sue if they had a contract. A contract is a formal agreement between a buyer and a seller. Donoghue did not buy the drink herself. Her friend had placed the order. Therefore, Donoghue had no contract with the café owner, Francis Minghella. She also had no contract with the manufacturer, Stevenson. Previously, liability usually required direct physical damage. Being made ill by a substance was not a recognized category.
There was a similar case called Mullen v AG Barr & Co Ltd. In that case, children found dead mice in ginger beer. The court ruled against the claimants in the Mullen case. The court held that manufacturers only owed a duty if a contract existed. They also mentioned exceptions for intrinsically dangerous goods. For example, explosives are naturally dangerous. Ginger beer is not intrinsically dangerous. This made the Donoghue case very difficult to win. 
The legal battle moved through several stages. First, it was heard in the Court of Session, Outer House. Lord Moncrieff heard the case in 1930. He ruled that food manufacturers have a duty to be clean. He believed tainted food is a dangerous good. However, the Inner House of the Court of Session disagreed. They followed the Mullen precedent and allowed Stevenson's appeal. Finally, the case reached the House of Lords. Donoghue filed a petition to appeal in February 1931. She even applied for status as a pauper to continue.
The House of Lords eventually reached a historic conclusion. They held that the manufacturer owed a duty of care to the consumer. This duty exists because it is reasonably foreseeable that unsafe products cause harm. This decision created a new type of liability. It moved the law from strict liability toward a fault-based system. This means responsibility is based on whether a person was careless. It established the "neighbor principle" in legal reasoning. This principle connects manufacturers to the ultimate consumers of their goods.
This case remains a vital part of legal history. It changed how we think about responsibility in a modern society. It ensures that companies must consider the safety of people they do not know personally. The decision moved the law beyond simple contracts. It allowed the law to evolve with changing technology and commerce. Today, the principles from Donoghue v Stevenson protect consumers everywhere. It is a cornerstone of modern tort and delict law.
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