First,
A link to Greg's post
Poll doesn't seem to allow for such a lengthy question, so just look here....
1) If you were playing in the WSOP, and someone was a possible threat to your daughter and wife, would you yell across a crowded room that you were going to kill him if he messed with your daughter or family?
2) If this person actually did mess with your daughter or family, you would kill them. You would be caught, and sentanced to a lengthy jail term for first degree murder.
3) If this person actually did mess with your daughter or family, you would kill them. You are 100% sure you would not be caught, and nobody would ever know except you who murdered this person.