Having lost all their money Jack and James heave to work their debt off by building a wall.James puts 2 large stones in a trolley and goes to help Jack carry another but when they put it in the trolley it now only has one in it.
In a poker game 2 purple chips are put on the stake pile, another purple one is tossed on then a 4th is tossed on but the 3 previous ones have disappeared.