No one can predict human behaviour. Sometimes, people can behave in ways that you wouldn't believe - people in the USA are spending more than 200 million USD in civil lawsuits per annum.
The following are some of the strangest examples of court battles:
Man vs. Bank
A man attempted to rob a bank and then sued it for a bizarre reason. According to him, the employees of the bank became aware of his deafness and they continued talking. This made them able to call the cops and stall him until they arrived. This deaf bank robber sued the bank for discrimination.
A Woman vs. Dog School
A woman sued a guide-dog school after a blind person supposedly stepped on her foot. The person was being guided by a dog. She sued the guide-school for $150,000.
Amber Carson vs. Restaurant
Amber Carson of Lancaster sued a restaurant in Philadelphia after she slipped over a beverage and broke her coccyx. She was awarded 113, 500 USD as a compensation despite the fact that the beverage was thrown by herself when she was mad at her boyfriend.
A Woman vs. City
Michele Nations, an Arizona woman, sued the city after she stumbled on a gopher hole and sprained her ankle. She won 450,000 USD, as a compensation for her injury.
Kara Walton vs. Nightclub
Kara Walton sued a night club when she lost her two front-teeth due to falling out of the club's window. She managed to win the dental expenses along with 12,000 USD.

She was using the window for sneaking into the club in order to avoid 3.50 USD cover charges.
A Kid vs. Father
A young resident of Ohio sued his father because he bumped into him with a lawnmower. His case was thrown out of the court.
A Woman vs. Grocery store
A woman in California sued a grocery store after dropping six-pack of beer on her foot. She was not injured, but stated that her foot hurt. She won the case!