It does bother me to walk on the joins on the footpath sometimes.
Sometimes I will avoid actually putting my foot on a crack or join, in fact I mostly will, though sometimes when I am deep in thought I will forget about it, so it is not a phobia.
No don't really think about it, probably avoid grates however...maybe I shouldn't as it could turn into a 'Marilyn Monroe' moment (if you get my drift)
No, but I use to play a game when I was on my way to school as a kid - avoid the cracks. By the time I lifted my head, I had arrived. Helped the time pass.
It doesn't bother me at all!! When I was a kid though,we would make a game of trying to avoid the cracks as there was a fabulous poem by A.A.Milne,called Lines and Squares in his book When We Were Very Young,about being causght by bears ,and we LOVED this so much!! I have always thought back on those days with utter joy and happiness!!