yell "u stoel tat gun idea from big red not orignal yor advntr suks"
call big red in holy loving stuff
aim again and hope that plasma cutter laser beam thing doesn't burn through chairs and hit things on the other side in just one shot
also, take the moment to enjoy your chair's plush lining, since you don't seem to sit in it all that often anyways. or if its not plush, thank your forethought in buying a sleek, polished unobtainium chair ahead of time for situations just like this.
edit: also, remind yourself to carry something a bit more powerful than a bolter at all times...