My son, the safety engineer, occasionally lets slip some interesting accounts of stupidity leading to lawsuits.
I happen to run across this article entitled "THE BASIC LAWS OF HUMAN STUPIDITY", which should be required reading for... well... the not-so-stupid... since it won't do any good for the stupid.
My sons have heard me say often enough that "stupidity has its own rewards." Unfortunately, the consequences of stupidity go beyond the stupid person. Perhaps there should be a stupidity test as part of all legal proceedings.