I disagree - there is non-SOP pilots any every airline be it regional, major, cargo, etc. They are in the minority though, most of those types tend to get weeded out eventually.

Also, despite the handle - I don't use guard for meowing. I won't lie, I frequently get a chuckle when I do hear it, and then the guard police go haywire (is it really Delta though?). But I use guard for lost comms and of course inadvertently when I'm trying to use radio two's standby frequency as the active.