I say, even in a enemy faction's fight, a little "die" before going at contact, or a "enemy spotted, engaging" if you are far enough can't be really armful, and is always a pleasure...
I'm merc and don't personally love them. But when I start chasing a bounty, I alway say "there is a bounty on you" in private before chasing, even if I'm not in the same sys...
When I'm protecting a trader, we have a fire protocol : if he shots : warn, if he continues : prevention shots, if he doesn't stop : kill.
OK for gentle RP, OK for gentle PvP too. What do you prefer ?
Hurk hurk hurk...
[\JG/]Pim (mercenary, ex-IMG)(Raven's talon, New London and New Berlin mainly)
John Smith(independant trader, ex-contract killer on Manhattan)(Heavy Tanker)