In "The Trouble With Tribbles," Kirk makes a big deal about assigning one Enterprise security guard for every Klingon that beams over to the station. When Scotty, Chekov, and Freeman enter the bar on K-7, two Enterprise security guards walk out of the bar, even though several Klingons are still sitting right there. Scotty even nods to them on their way out. Then, after the fight breaks out, five security guards charge back in to break things up.
So if the Enterprise security guards were supposed to be guarding the Klingons, why the heck did they leave the bar? They weren't following anyone. If they were going off duty, presumably they'd wait for their relief to arrive first. I hope Kirk disciplined them for this blatant dereliction of duty.*
(*Of course, I know that the real reason the guards leave is so that the fight can break out in the first place. It's just kind of funny when you realize how artificially they set it up.)
So if the Enterprise security guards were supposed to be guarding the Klingons, why the heck did they leave the bar? They weren't following anyone. If they were going off duty, presumably they'd wait for their relief to arrive first. I hope Kirk disciplined them for this blatant dereliction of duty.*
(*Of course, I know that the real reason the guards leave is so that the fight can break out in the first place. It's just kind of funny when you realize how artificially they set it up.)