1. A defense lawyer tried to call me as a witness in a case I was prosecuting, to impeach the credibility of my primary eyewitness.
2. A co-worker tried a case in which the victim was assaulted by a colleague on a construction site. The defendant admitted to beating the victim with a shovel, but was found not guilty anyway, largely because the victim was batshit crazy. Amongst other things, he testified that he wasn't racist because his "spiritual mother" is black (there were allegedly racially epithets exchanged during this encounter), he pronounced judgments on people by handing them playing cards (in this case, the queen of diamonds), and that he had psychic powers.
3. A different defense lawyer, faced with defending a person caught on tape selling drugs to an undercover officer, tried to convince me that it's entrapment when a cop asks a person who says he is selling drugs, to sell him drugs. Maybe you have to be a lawyer to understand how blitheringly stupid this argument is, but
here's a helpful primer on entrapment so you can see what I mean.