Batman was afraid of them too.

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Batgirl: You there! Don't come any closer or I'll... I'll...
Karen: Wow you really do hate bats, Batgirl. I thought you can tame them or something.
Batgirl: Well duh, I'm just an ordinary human girl who happens to be the best sidekick of Batman, with an exceptional talent for making cool gadgets. I wasn't bitten by a radioactive bat or anything. You don't like bees or honey, do you? Well maybe you do, but that's not the point.
Karen: O-Okay Babs, uh, but first we have to open the window if we really want that thing out. And, we're in the DC universe, you know...

Actually this show got cancelled before even it gets here. Watching all the Super Shorts makes us crave for the full episodes even more.
Well they air some of them, but Cartoon Network over here loves to rerun the Space House episodes over and over for no reason.
Hey CN, why only air the collab special and not the entire series? Geez. I thought we finally got a more sophisticated TTG with a bit of drama.