On Mon, 28 Oct 2013 11:58:34 +0000, Martin Brown wrote:

I did boggle at the lady in front of me who tipped in £160 worth of
mixed coins, with £1 coins being the most common (she showed me the
receipt).

I can't see why anyone would ever do this.

Indolence, with a slight side-order of "haven't bothered reading the
small print", mainly.