Crash due to water bottle
When I used to ride in a paceline a lot, I had a lot of issues with getting a drink of water while maintaining a straight line. So much so, those riding in the paceline complained. Since then, if I'm riding in a paceline, I wait until I'm at the end of the paceline to get a drink. With practice, maybe this would be less of an issue for me. If you're racing, maybe waiting until you're at the back isn't so much an option but in those situations you have to be very cautious when drafting anyway.