7 spoilers for the movie One Flew Over the Cuckoo's Nest

Jack Nicholson gets a lobotomy

When Jack Nicholson flies over the cuckoo's nest he drops his lighter and kill three

When Jack Nicholson flies over the cuckoo's nest he drops his lighter and kills three

McMurphy gets a lobotomie treatment, after which 'Chief' kills him to end his missery

Billy Bibbit kills himself after having sex for first time with McMurphy's girlfriend.

If you like The Simpsons, you got spoiled

The chief euthanized Nicholson!