Isaac runs laps. Everywhere we go. We went to look at a house to buy last week and he insisted on running laps around their dining table.
No idea why he does it but he's been doing it since he could walk (supported) around the coffee table at about 9 months old. And it's always anti-clockwise.
oh wow - that is so DS as well! and yep, always anti-clockwise

DS finds himself incredibly amusing at times & will stop what he's doing & do this big muhaha laugh with his head thrown back. he also re-enacts a scene from a wiggles dvd every time we go to get into my car at home. he stops in the front garden & tells me a storm is coming & then he runs on the spot & says "run run run (to the) trees, run run run flowers, run run run grass" etc going through all the things he can see. but he doesn't do it at anyone else's house or if we're going in DP's car.