Yeah, night drops are unnecessary. Some have reported positive results during breeding, but that's it.

It's just...It's a snake. They bite. Is it really surprising?

Heck, it's an animal. They bite. Ever play with a puppy or kitten?

You go through it and teach them it does no good. This was probably from fear. And yes, remove the hide, approach from behind, pet them a bit, then pick up.

Age and size don't really correlate well.