One of the funniest things I ever saw was when we were young and we were driving little go carts on a track, they took 10 pence or something to operate (this was early 80’s). My brothers 10 pence ran out so he clambered out and dragged the fake petrol pump to the wee car and pretended to fill it. As he was doing this my dad stick another 10 pence in without my brother seeing him. He climbed back in and drove off dragging to model petrol pump....he was 3!