One day 3 aliens came on earth. The first alien learned how to say I. the second alien learned how to say knife. The third alien learned how to say yeah. After a while they killed a man then the police caught them and asked who killed the man the first alien said I then he put the alien into jail. Then he asked with what weapon he killed man. The second one said knife then the police shot him (actually they killed with a space gun). Then the third one suddenly said yeah.