Many BioWare banters do not have CombatCounter(0) !See([ENEMY]) triggers, so they can fire in combat.
Ironically, I just got a really funny one. We were preparing to enter Lady Galvena's Feasthall, and the Front called the guards. Combat was joined, and Anomen chimes in with "These pathetic skirmishes of ours aren't worth the time I spend cleaning my weapons after the battle! Now, the campaign against the Hillgnasher giants, now that brought the blood up!"
Gee, Anomen, maybe if you stopped chatting and started fighting, your blood pressure might go up a click or two.