Rules of South African Shopkeeping

There seem to be various Enduring Rules of South African Shopkeeping. Here's a sample:

1. If the shopper buys both hot pies and ice cream, be sure to put the hot pies on top of the ice cream, in the same bag.

2. If the shopper buys both milk and chips or crisps, pack the milk on top of the crisps -- and be sure to push it down on them.

3. If the shopper offers to pay with a card, tell them, "We're off-line. You can get some cash around the corner. But that's off-line!"