Aut cum scuto aut in scuto
Tall, skinny tires, it's easy to do.Rule #1: When taking a drink move to the back of the line.
Missed putting the bottle back in the bottle cage. Then stopped peddling to look down at what he was doing which shifted his center of balance and turned the wheel simultaneously. Then its road rash all around.
This instantly triggered my ear-worm playback of a 1963 Sufaris tune.
Ah-ha-ha-ha-ha-ha-ha-haaaa. Wipe out!
Rule #1 Learn some bike handling skill and pay 'fing attention to what you're doing in a group ride. When I start out with a bunch and don't know some of them I watch their riding style (or lack of it) and predict the goof balls that are likely to crash out.