Weirdest place you ever did a workout??

At the moment I'm sitting on the passenger site of our car and doing Daniels Desk Job stretching workout - it actually works 😁 We are on a ferry at the moment (returning from vacation) and i feel just stiff and achy so i decided to use the time for a little workout...

I'm curious: What are the weirdest or most uncommon places or situations you ever used for working out?

Greetings from Germany