A while ago, Dr. S asked me if my old lab had a nickname for me. "Not one they'd say to my face," I said. (I had, I regret to say, a host of nicknames, especially for our rotation students, whose names I could never remember, and for the undergrads, especially the one who said 'But titanium is a biological ion! ... isn't it?' in lab meeting once.)
Anyhow, I think if they had one, it was probably something like Ice Princess, only less polite. Somehow that reminded me of being pregnant. Only one person touched my belly without asking, and she's my spouse's favorite aunt, so she gets a pass.
I must exude some powerful kind of Don't Touch Me, I'll Bite That Hand Right Off.