Well, this really isn't anything new when you think about it. Remember when Bane paralyzed him? I'd find it very unlikely that he held everything in. Other than that, it's just messed up, I mean he's the freaking Batman, that's almost like saying Superman shats himself everytime something "scary" happens to Lois.
not only that it was during flashback to a crowning moment of awesome during Year One. also he says killer crocs condition is full body genital warts. Also no character is in character.
Any chance that someone at DC thought "It's Kevin Smith! Of course it's great! We don't need to proof it!"?
The quote Smith has taken from Year One is a misquote. If he'd actually dug out the comic and referred to it (while he was pissing on it) he wouldn't have messed up the grammar. It doesn't bother me to be honest. It's just another comic I had no interest in reading.
I personally have not read Widening Gyre, but I knew something was up when I saw Smith defending this particular moment on his Twitter account. It does seem a rather odd thing to have in a Batman comic, although it somehow doesn't surprise me considering Smith has been smoking weed pretty much daily, of his own account.