The other day Stéphane brought a trailer load of sand up and parked in our backyard. He spent the morning making concrete. At lunchtime he found he had some concrete left over, so he decided to use it up by filling in some potholes in our driveway.
Good idea, but...he had forgotten that his car and trailer were trapped on the wrong side of the newly filled potholes. Oops...
Fortunately, his lunch was within walking distance, and I set up a red triangle to warn our neighbours when they came home for lunch.