are boobytrap chests worth making?

what does each of them do? wiki does not explain at all. snake, rat and explosion ones are self explanatory but what does the flutterbomb do? does the grenade chest blow up objects around it?
seems like it would just piss off anyone who was strong enough to get in and encourage them to go on a smashing spree to me, but I don't know. are they strong enough to really make a difference against a raider?
seems like it would just piss off anyone who was strong enough to get in and encourage them to go on a smashing spree to me, but I don't know. are they strong enough to really make a difference against a raider?