Long story, but I was sick when I saw "Sweeney", so I didn't stage door. As it happened, our hotel was really close to the O'Neill theater, and when my mom was leaving to get me some medicine about an hour after the show, she saw Michael still at the stage door. She got him to sign a Playbill she still had in her purse, and she relayed my personal opinion that I thought "Sweeney" was robbed at the Tonys. She said he seemed really genuinely surprised she said that, and that he was really gracious and nice--real laid back, and in her words "You would have no idea it was the same guy who had been on that stage". (Thank god--can you imagine??!!)
Not that this one encounter encapsulates his personality, but my mom has encountered people at the stage door before, and she mentioned several times, even the next day, how cool of a guy he seemed to be...I dunno. But I'm sure there are things that actors get in the habit of saying in response to certain questions/comments. After a while, you only have so many original things to say to fans.
And maybe the whole comment about "Sweeney" being his first Broadway show seemed rehearsed because probably every other "Sweeney"-related review I've read with him, he mentions it.
"Isn't it nice to know a lot...and a little bit...not."