What happens if I catch Wheatley?
You can't catch him there: he will always fall to the floor. You can however pick him up after that happens.
Standing ready to catch!
Failing miserably...
But he's still alright!
I have reloaded this save so many times and in many times Wheatley was on my head for good 3~5 seconds while I was mashing the E button... but they disable it so he always falls :(
It's kinda funny to hear all the lines that Wheatley says after he falls and if you leave him alone without picking him up :) You can also roll him around the floor while listening.
The first time I played I got right under him. You can't catch Wheatley, no matter what you try. You actually get a bit more “catchmecatchmecatchme” dialog if you balance him a lil'. Try it!