Another one from <email deleted>: freezing spheres have the NOTAKE
attribute but flaming and shocking spheres don't. That means that tame
critters of the latter two types will pick up and drop things. I only saw
it happen with single gold pieces in my limited testing; I guess they're
really weak.
This one sounds sort of familiar; I think it might have been reported
before. The fix is so trivial I don't know why it didn't happen.