1) I've thought about it deeply to the point where I play my own death scenes in my head, but no, I've never attempted it. I don't like inflicting intense pain on myself. The scenes are enough to satisfy me anyway.
2) YES. I hate that person down to his very last quirk, and I still wish I was crafty enough to get away with his murder. >=) Again, fantasies are enough anyway.
3) No.