When I was around 10-11 years old, my parents made a shed at the back of the garden, by putting a door and roof on a small space at the back of the garage. This was used to store gardening supplies—compost, plant pots and the like—and bottles of the dubious home-made wine and beer that was popular at the time.
One summer day I decided, on a whim, that this needed a label putting on it. So, using a chisel and hammer from the garage, I gouged the words “TOOL SHED” into the paint and wood, fairly deeply. Then, realising that the shed wasn’t used to store tools, I panicked; but a simple solution came to mind. As a result I carved the word “NOT” above the word “TOOL SHED”, with an asterisk added to retain the symmetry of four letters on each line. As a result, the shed had (and retained for several years) the label:
and was thus referred to in my family for many years subsequently.
I believe that I am the only person alive who remembers this.