Specifically, between rounds played on the same day, and without an inordinate amount of time between rounds, like you might have if you had 144 people playing on the same course and you had to have 2 flights.
Off the top of my head, between rounds of a Circular Skies over Carrollton in the mid 1990's (1994?), I went home and mowed the front lawn of my home. Made my arms feel kind of strange when I warmed up before the second round. I was a new master, and I thought I could get away with it. Don't remember what I did, though. Shouldn't be hard for many of you to top this, but pls remember to make your responses family-friendly.