I've gotten up and walked to the screen before. Usually because I'm touched somehow and want to hug someone. So I get up and send a virtual hug to them.

I probably do it to Mac more than anyone else, but I've done it a time or two for Frankie, too. In "TLP" when I heard her sob, and she called herself a loser, I felt a lump rise in my throat and I held my arms out to her and said "No you're not!" I seriously felt like tearing up there for a second. I didn't actually get up this time, but I
did give her a virtual hug.
Yeah, add my name to whatever project you're doing, Cass.
Also, I agree Medikor's theory is very interesting. That's a very good point.