Beanie has been doing this a lot recently. We grab him for movie night, and he's in the middle of "some business." So we have to wait for him to finish what he's working on. We don't put him down, because then we'd have to catch him again, so it leads to some awkward standing around waiting for him to be done.
The only really unpleasant thing about this is we have to keep checking to see if it's still there...