Grrr...I thought I could pop into my local Wellcome supermarket at lunchtime to pick up a few things.
When I went to the checkout I noticed there was a queue. When I looked closer I saw that it was a long, slow-moving queue.
The explanation is that they are offering 10% off everything. Cue arrival of people who have all the time in the world if they can save a few dollars. Exit exasperated Gweilo.