Before we got married, my wife's initials were BJ. We were buying a car at a dealership once, and the older salesman's going through the paperwork. He points to one space on the form and says "and if I could just get a BJ right here..." which got a loud snort/chuckle out of me, which got my wife laughing. Ol' fucker turned beet red. I still drop that line all the time, 20 years later.