One of my local banks has a policy that employees are not allowed to buy coin, I find that pretty interesting.
I don’t have many stories because I don’t sort much. Last time I brought two boxes worth of Halves to my local WF, they refused to take it. I threw a little fit as these were nicely rolled coins and was told they had no way of checking authenticity so they have to mail them to the treasury, which would cost money. They said once authenticity was verified, I’d get a deposit within 2 weeks. I told them to go ahead and close all 4 accounts I had and that I would take my business elsewhere. After a few more minutes, a bank manager came out and personally checked every single roll with a rare earth magnet, then handed me my cash and said that if the coins had any issues getting authenticated, they would withdraw the money from my account. Needless to say, I never went back
The best story isn’t actually mine (unfortunately). A buddy of mine is a branch manager at a small neighborhood credit union. One time an older lady came in wanting to deposit coins she found cleaning out her late father’s home. He was shocked when she handed him a small bag of Morgan dollars

He spent 5 minuets explaining how these coins are a lot more valuable than face value asking that she keeps them but she insisted, didn’t have any desire to deal with a bunch of old coins. She was happy to walk out with a single $100 bill and the 5 bank employees each bought 20 Morgan dollars for $20. He said that at least once a year relatives dump grandpa’s old coins for a face value deposit. What a shame