Back when I first started tanking 5-mans, there was a particular hunter who pulled off me with irritating regularity. This was partly because the early Druid tanking set at 70 is itemized more for mitigation than threat generation, but partly because he was a young guy, he was good dps, and he knew it. MM-specced Hunters actually do have a lot of control over mobs that get pulled off the tank, and I suspect on some level he made a game out of seeing just how long he could lock something down while the exasperated tank turned her attention elsewhere, usually after bellowing at him in party chat to "DISENGAGE! FEIGN DEATH! DISENGAGE!"
Not having played a Hunter at that point, I had a fuzzy notion that Disengage somehow reduced threat and was highly affronted at any hunter with aggro spikes who wasn't using Feign Death over and over again. After starting to level a hunter alt, it quickly became apparent that: a). Disengage was a melee-only skill that still had to "hit" the mob, and b). Feign Death wasn't exactly a spammable ability and could be resisted no matter what you did. I am by no means an expert hunter player, but I have at least learned to bellow, "FEIGN DEATH ON COOLDOWN!" if they're not trapping (and just minding my own business if they are).
I am still occasionally reminded of my days as a backseat hunter, and never more so than while listening to my GM trying to figure out what's gone wrong in a raid.