You’re walking down a concrete pavement. The pavement is in pretty good condition, nice wide slabs, laid nice and level, maybe two metres across to the roadside. It’s pretty clean too, with an absence of litter.
There are not many people around. You’re in no hurry although you do have a destination in mind.
Up ahead, perhaps ten metres away, you notice a pebble on the pavement. The pebble is about three cm in diameter and is smooth and is best described as shaped like an oblate spheroid. It’s in your path, roughly centrally placed on the pavement.
When in this situation with the TV I’ll try and kick the pebble into her stride so she inadvertently plays a “one-two” with me. I know this is a slightly different hypothetical but I think it’s tangentially relevant.