About a mile from home, cycling along a quiet, long, tree lined avenue. I saw a group of five kids aged 4-7 just mucking about on bikes, on the pavement. I recognised one - it was my 7 year old and remembered that he was playing at a friends that day.
He saw me and I waved. Then I had an idea. I'd mount the pavement and pretend to chase him. So I did.
"Grrrr." I shouted "I'm going to eat you up." All the kids scarpered, screaming and laughing. My son (he's a very baby 7) scootled along on his single-speed MTB in mock fear, kid in front turned across him, down they both went, onto the concrete pavement.
Boo hoo hoo. Tears, grazes etc.
Moral? Don't chase kids on a fixed along a pavement. It's not big and it's not clever.