Holy ****,
@Spiky Bugger , that's what we did with our 28 year old son. He's been back for 8 months and appears to have grown roots into the foundation, never planning on leaving. I'd rethink that offer, if you enjoy your "privacy". And by "privacy" I mean being able to bump uglies in the kitchen or any other room without getting "caught", walking around in a state of undress if you are so inclined, or any other activity you really don't know you take for granted until it's awkward when the "kid" moves back in.
Sheesh. This kid has YET to help around the house. Dust balls as big as tumbleweeds in his rooms (he has the downstairs "suite") that he never cleans. We are beginning to understand exactly why his SO kicked him out.
Sometimes the best "help" a parent can give is to NOT let them move back home. It would have been hard to do, but now I wish I'd have said no.