While GMRS is a bring-your-own-contacts service you can bump into strangers. It's not like amateur radio but it can still be amusing. I'm new to this and when I first connected to a local repeater my radio check was picked up right away by a trucker who uses HAM, GMRS and CB. He was legit in his usage but also ID'd with his handle; “This is XXXX123, a.k.a. 'Roadrunner,'” or something similar.
Since my HT was fresh out of the box the roger beep was on and he gave me the Sad Ham treatment about it. “I'm gonna call you Mr. Roger Beep.” I replied, “Yeah, I've heard that some people don't like the roger beep.” He came back, “Hey, I've seen that 'Some People' guy. He's good!”
Roadrunner: Hey, Mr. Roger Beep. You out there?
Me: WRYP592, a.k.a. Mr. Roger Beep monitoring. Rested and ready to beep.
And we're off...