I used to ship pistols from the UPS hub in Athens. They required them to be overnighted at a cost of $80.I did that once about 10 years ago. Went to a mailbox store place and the counter guy freaked out - then went to UPS and was told I had to do overnight delivery and was going to be around $100. When I said no- the UPS guy suggested I just don't tell him what's in the box and just do normal delivery for $20 and insure it just in case. Lots of "you can't" vs. "you shouldn't"
There was one girl that worked the counter sometimes that didn't know that. I could ship them for $20 when she was working.
Once she caught on and started making me overnight them, I stopped shipping "pistols" and started shipping "machine parts" LOL