I'm getting ready for my first century also and your list had me lol. Thx for that. I went out with my very strong ride guy pal that intends to ride it with me. I was already protesting part of the list on what he would do. A couple of those things happened to him on our training ride today. Including dogs from he$$... omg... I think "dog from he$$" should be a special marker on cycling maps. That's how I ride my normal routes locally... big bold letters: DOG. Good luck for the next event.