WOAH. I didn't even think of that squirrel. Why did he let that thing go? That could've been his legit summon, whether for comedy relief or not. I gave him a chinese dragon because I think Rock Lee deserves something like that and also as a reference to martial arts movies.
I know everything in the thread is hypothetical; but Lee can't summon a thing. Squirrel would be just around and Lee would "summon" it like he "summons" Neji in SD.