Parallel but unrelated, you can play these tones [0] to unlock shopping cart wheels that have locked up on you. The literal only times I ever abandon a cart (not return it to the store or cart corral) is when they lock up and I can't move the god damned things -- and the rare times it has happened have been in the middle of aisles where cars are supposed to drive, FULLY LOADED CART, before I ever get to the car to unload.

[0] https://www.begaydocrime.com