I actually never had an issue with Crocs. Sure they looked dumb, but they never annoyed me. I even have a pair, though I only wore them in my yard, or while boating on the river.
It annoys me how I'll have a thought during a related conversation, but everyone's so chatty that I hold the thought until I find a long enough pause to place it, but often the topic had already passed by that time and it's just ignored.