Formal more fun?

I’m standing in line at a local taco place. I see the punk rock girl behind the counter, ready to take my order.

Punk Rock Girl: Mr. Mooooooooooooooooon!

Me: Heh. How are you?

PRG: I’m good, Mr. Moooooooooon!

Me: [embarassed] You know, I’ve forgotten your name…

PRG: It’s Suzy.

Me: Hi, Suzy! By the way, my first name is Brian.

PRG: OK, Brian. But “Mr. Mooooooooooooooooooooon!” is so much more fun to say!