This reminds me of something that vexes me wherever I see it: asking for confirmation to do something totally non-destructive and undoable.

That is to condition you to hit "YES, DO IT ALREADY" without thinking when you get a prompt for something which is destructive and irreversable.

Moving files to the Recycle Bin vs. deleting them over network shares is an excellent example.

Quite. Personally, I'll never vape a document before I have the satisfactory printout in my hands, anyway. Unless it's something utterly trivial like an address for a parcel, I won't vape it even then.

There's much more risk of the printer mangling my output or the job getting lost than of someone accidentally cancelling the job when they didn't mean to.