Got my MOT on Wednesday so I set about finishing off 2 last jobs today - swapped the exhaust for the standard can, changed one set of front brake pads, got to the 2nd and the pin that holds the pads in has previously been treated badly - the head is rounded off. the pin I mean is arrowed (badly!) in the pic below. Now I dunno what to do - can't get the pin out so can't change the pads, and they're on the wear indicator so easily an MOT failure amny ideas guys, or is it new calliper time?