Poor guy. If it weren't for the possibility of creepy-crawlies getting on your other critters, I'd say leave him alone entirely for a few more weeks. Realistically, though, that's not an option for you. I have a suggestion you might try, tho. Snyder definitely recognizes my voice and she's much less likely to be startled about being gotten out if I talk to her first to let her know it's me. Hanover is pretty much to that point, too. You might try occasionally opening his container and just speaking to him for several seconds and closing it back so he doesn't associate your voice with unpleasant things, then make a point of speaking to him each time before you take him out of it. It may not calm him any but it doesn't cost you anything to try.