My friends blew the speaker in my b rig, Who should pay?

I personally would leave the group( they haven't called or tried to pitch in for a new one) Whoever did that **** knows they did it, so they should man-up and pay. If you want to get even, find out who did it and **** up their equipment. Sucks that it has to be like that, but they need to know that you're not the one to play with.