From the ACRLog:
I’ve found that although male librarians often tell people they became librarians for the girly reason of “helping people,†the real reason is that they’re in it for the power. Who among us hasn’t felt the surge of testosterone after sitting at the reference desk, taking on all comers, and summoning up the skills to answer any question, from any discipline? Last night I answered a question about the ecology of the Pine Barrens. Now for a humanities librarian, that’s a rush.
So perhaps if you’re getting asked, “Do you work out?”, maybe it’s because you’re doing multiple sets at the reference desk.