I had to put him in this position, but then he held on and stayed that way for quite a while.
He's not happy about it, but he's standing!
Oh look! The Backyardigans are on!!
I should add that his lip is fine--thank you all for your concern.
He bites it on a somewhat regular basis---he has 8 teeth and they sometimes get in the way. :)
It looks worse than it actually was and he didn't even notice it.