Been there. For me, it ruins the enjoyment of the ride. I really dislike riding in groups. I've found, most often, the ones that raise the most hell are the one's that don't ride much OR they have control issues & want boss everyone around. Those guys (yes, it's always a man) need to relax & take a breath. The group we ride with once in a while, has very few rules. Bikes, then trikes & keep up w/ the group. Once in a while there's someone in the group that's giving all sorts of hand signals, which are most often confusing, mean very little, & I pay NO attention to & do not puppet them. Due to previous very close calls, I ride on the right, next to the bike path and if you a problem with that, "oh well" .