Yeah, my stories aren't very good so I'll go first.
My boyfriend and I both love Data a lot. He is in our top 5 favorite characters in Star Trek, near the top of the list depending on what we're watching at the moment.
However we both think when Brent Spiner isn't being Data he seems pretty weird/creepy as an actor, including the episodes where he's Lore or Data's personality changes at all.
I'm sure he's a nice guy, or maybe he isn't I have no idea, that's just the impression we get from him as an actor when he's not acting as Data.
We went to the Star Trek convention in Las Vegas a couple of years ago, and most of the Next Gen actors were sitting at a booth for autographs. We were too cheap to actually pay for autographs so we didn't really get to talk to them or anything, but we were hanging out and gawking and Brent Spiner looked directly into my eyes and I actually got kind of freaked out. I'm not really someone who cares much about celebrities, but dude's look was really intense.
Also, some dipshit was snapping photos of him while he was trying to eat a sandwich, which made me feel really bad for him. He was trying to eat the sandwich really fast, I don't know why he didn't just break for lunch like some of the others. But taking photos of people eating? Come on.
My second story is a little better but it didn't happen to me. A friend of mine was at a comic-con (maybe a sci-fi con, idr) where Brent Spiner had a booth for something. She was volunteering for a different booth and I guess there was a lull in activity, so she went over to Brent Spiner's booth to tell him she really loved him in Star Trek.
Apparently he was SUPER nice to her and he took her around to several different booths, introducing her to some of the people he knew and was generally just really nice and friendly and cool.
What's your story?