Jonathan Kemerer, but I prefer to go by Jon.
It's funny, back when my brother and I owned a restaurant, we (I, since I was the head cashier) had to ask people's first names because 1. it was a more friendly way of associating people to their orders when they were finished, 2. so we (I) remembered people (funny, people actually like being remembered) and 3. because that's how the franchsise system was set up, and we if we didn't we'd be in trouble.
You'd be surprised, or not, at how many people refused to give their FIRST name. All hell broke loose when on the occasion I had to ask their last initial because someone by their same first name also had an order being made. You'd think I was asking for their social security number or their credit card no.#
"Why do you have to know that?"
"I'm not saying, you don't need to know that!"
"I'm checking with my congressmen to see if that's legal!"
I'll never forget this one guy that refused to give his name out,... we finally agreed on one, so I put "Mr. Wonderful" on the ticket, hey the customer is always right. When his order was ready, my brother called his name over the loudspeaker "Order up for Mr. Wonderful!". Funnily enough, Mr. Wonderful was a regular customer of ours.