none...I wasn't as concerned about him doing it to me...especially if I somehow broke some unspoken rule...but it was the 2 behind me because they were apparently just following my lead. Again, this is supposed to be a fairly casual group ride and it always turns in to a hammerfest at about the 4th mile (the path opens to a practically never driven open road) it's very windy on this road because its next to open field so drafting is a must if you want to get decent speed without killing yourself.