I saw him at a comic signing forever ago at the now defunct Words and Pictures museum (basically a comic museum created by Kevin Eastman...was pretty cool, had the ninja turtle movie costumes and master splinter there from the original live action films). Ben Edlund was also there at the signing and I got a Tick sketch from him /w the autograph.
Anyways, I was there with a girl I had a previous summer fling with and she was a ultra Kevin Smith fangirl. She had some giant sized Spanish poster for Chasing Amy for him to sign because it was the only Kevin Smith movie poster we could find on short notice at the mall. So she gets up there and starts having a "OMG" squeeing fangirl moment and literally everyone in the room just stops and is looking at her wondering wtf is happening. She asks to pinch his stomach and he is like fuck no, so she asks if she can pinch his cheek and he is like uh sure, so she does that while he has a "wut" expression and she is all "EEEEEEEE". He basically tells her she needs to chill a bit and went all deluxe on the poster (defaced Ben Affleck's face, drew boobs on another character, then signed the poster telling her to calm the fuck down). Was like 20 years ago, but I wouldn't be surprised if he still remembered that lol