Obviously "the gun just went off" :barf:
Still though, I don't think it's a shooter training issue as much as it is a terminal stupidy issue. One DOES NOT hide out in someone's house and jump out to "scare" them. Expecially when said someone is known to you to be regularly armed, or to keep a weapon at home (being his fiance, I'd HAVE to think she'd know that).
I mean really.. who here would volunteer to hide in, say, Tam's closet to try to spook her? Presuming you could wriggle in past the rifles and then stand up without setting off the claymore, I mean.
Simply, Don't Taunt Tigers.
The Tiger might not know its a game.