No examples (because I don't buy second hand) but here's a thought experiment: How much is second hand clothing worth?
Consider an item that a complete stranger has worn next to their skin for a full year. 7 days a week.
It's going to be scratched and worn. They'll have sweated in it, showered in it, slept in it and maybe even done other things in it!
Would you want to buy it? How much would you offer?
How many times will an Apple watch get within inches of your bum on the toilet.
If you "use" your left hand for that, you are, in effect almost putting the watch into the top of the un flushed toilet pan, and around a bum being wiped perhaps a few 100 times a year