I always assumed that riding is ultimately a more or less individual activity (outside of 2 up riding which I only do with Pauly in full leather) so even in a group setting, if somebody gets a wild hair up their ass on some particular road or even set of corners they particularly loved, they should go ahead and blow their load and come back when ready. Ideally, communication is desirable but if they're peeling off vs being left behind, I dont think it matters much. I haven't ridden with UP in a very long time but I never minded when he hurt my feelings and left me behind like an unwanted stepchild during a ride.