When walking with your son, trying carefully trying to "stay on the line" (between the tiles in the church hallway), make sure you look up every now and then.
Otherwise, you may SMASH your head right into a coat rack hanging on the wall.
The bad news:
I did not follow this advice and nearly knocked myself unconcious today.
The good news:
I was so dazed that I didn't shout a string of profanities that would have made my Irish ancestors blush.