That little maneuver goes about as well as one would expect - which is to say, not at all. Tim doesn't fight it when he pushes away, but the anticipatory shuffle of his weight across the leaf litter is a pretty solid indication that he's expecting the attempt to backfire.

"I can't fly," he says, a terse undertone. "Remember?"

That's...that's what kind of plan he's hinting at, right? What other kind of plan would involve the canopy overhead?