On the other hand, some people don't give out check-6s when they should. Ofcourse, it's not a legal matter or anything, but..
There are innocent victims of accusation like oboe, but there are other instances.
Like, every time I fly and see an enemy plane closing behind me, I keep quite and scan around who gives me a 6-call. Many good people do give me calls, but every now and then, I see a bad guy behind me at about 1.0, and I see a friendly behind him at something like 2.0. I wait for the 6-call, see when he's gonna give it to me.
Nope, zip, zilch, nada.
And then I go into an overshoot maneuver. And I try to give that guy a killshooter.
"oops, sorry. I didn't know you were there. I'd have known if you had given me a check-6 that you were chasing that boget."