Does Anybody Rent a Room in Their Primary Residence?

[Jason L.]

Does anybody rent a room in their own house that they currently live in? I don't mean a separate rental you own. I mean your current primary residence. 

I just bought a new 3/2 primary. I'm a single guy, so I basically have a guest bed and guest bath that are going to be fully furnished yet never get used otherwise. I do work during the week and I'm not sure about having strangers in my house when I'm not home, but I was considering the idea of trying to open up the room for weekends and holidays when I'd be home. 

Any pros/cons I should consider from people who have done this? Was it weird to have other people in your house while you are home (not home?)?