Old person, new name
Used to go by the name FDMHBozz. That (Bozz) was the name given to me years ago, when I was actually in the fire service. Now, I'm an Air Force flight medic, and my squadron-mates have bestowed upon me the call sign Butters.
I still have an insatiable thirst for knowledge when it comes to the fire service, and still know quite a bit. I don't claim to know it all. Haven't done the firefighter thing in about 6 years, but I still try to keep my mind in it.
I know a thing or two about aviation, medicine, and aviation medicine.