You know, someone dropping Grease and causing people to fall down (or even die) is funny once or maybe even twice in a farming run.
It really stops being funny when you're dropping it every 10 seconds, all throughout the quest, through multiple runs. In fact, it's a lot like a kid retelling a variation of the same knock-knock joke every 5 minutes, on a three-day trip to Disneyworld.
Trust me, it places you comedic timing on the same equivalency as that of Bob Dole.
That is, unless, you think your toon can solo the boss, which it is clear it can't. In fact, it was REALLY clear you couldn't.
And here's a hint: when the entire party disbands and reforms without you being included, you've just been placed on 5 different people's squelch lists.