The chorus of "Life Is Too Short to Fold Underwear" runs just about 25 seconds - just right for hand-washing in the age of COVID-19.
I know this because of Rich Warren's Folkstage concert on WFMT. The show is a live performance to a small audience which is simultaneously broadcast. In order to fit the format, it's necessary to end the last tune precisely on time - so it's really handy to have a song with an adjustable number of 1-minute segments.