Sure Mav. I get the original intent of the thread. There is indeed quite a lot of carry on WRT guard. So are we agreed on these principles.
1. Check freq before transmitting.
2. If you stuffed up point 1 then it's acceptable for someone else (and probably multiple people at the same time given that no one knows who else is around) to let you know.
3. Those who say 'go ahead' to the company call on guard should be summarily shot.
No need to get agro at the 'guard police' enacting point 2 as nohumbug and a couple of others suggest.
Bloggs, couldn't agree more. If it's the bloke or blokette beside me then it's me getting cranky at them (short fuse now that I'm old!).
Anyway, slow news day obviously!