So we go into a pub in Bannochburn...

To see if we can get a pint and some food. Daniel asks the bar lady
if they serve food, and she says no. I go up and ask if there is
anywhere they recommend, and by the time I turn around someone had
brough a pile of sandwiches, plopped them down on the table, and said
they were on the house. The tuna sandwiches were quick toothsome.

Since they were free, I left a fiver under the platter. I returned
later that evening and at least half a dozen patrons ribbed me for
leaving a tip. They just don't do that here it seems.