So as long as my wish, whatever it is, doesn't do something to someone else that they wouldn't want, it's likely to go through- if we're assuming that everything else is on the level and actually functions outside of this dimension.

[ Which is a leap even for him but- it does make him reconsider how it is he's meant to be spending his wish. Or how he wants.

Does it overrule consent? Probably. Well he didn't expect much different anyway so nothing is, honestly, lost. ]

Not a bad idea if we're able to collect it without exposing the wishes made. Make it binary. Yes or No, no elaboration required.