I'm still dealing with something like that, right now. Except, she doesn't want ME to work on it - she wants the other senior tech, that's only there 1 or 2 days a week. No, prob, whatsoever. You'll wait. I'm the only person that's ever touched that machine - except when she takes it to local shoody backyard tech, then comes to me to complain - and I call her out on work I didn't do. Doesn't helpt hat she's an angry lesbian, haates alll - AAAALLLLLLL - men. I just don't take her shiit...
So, she came in, "There's oil all over the front of my engine, you're the last one that worked on it!!!" Hey, Chica, you were here 6 months ago, and you have another 960iles on your machine since you left. The oil is all the way at the top of your engine, so it's a problem from somewhere high ON the engine. Turbo oil feed line, I'd suspect. Gimme a few days, and I'll find it. Fukc, it was in her clutching. Secondary clutch bearing spun itself out, completely cored the trans input seal, and sprayed trans oil out the clutch outlet duct, all over the front of her engine. Inside that secondary clutch were melted slider bushings - that DON'T MELT... well, gave her an estimate. She bitched. I told her it had not a single thing to do with the full service 960 miles ago, and it was from extended high RPM operation, ONLY. Her answer was, "I like to drive fast..." Alrighty then, YOU are the problem with your machines issue. If you can CAUSE it, or you can PREVENT it - that doesn't fall within any king of "warranty" type of complaint, whatsoever. You are the one that did it.
So, after the primary problem is resolved - the oil everywhere, and the source of it - it's still fukced up. Creeping in gear, walking at idle, moving when it shouldn't, at idle. Call her back up, tell her that more than the initial has been damaged by her misuse of the machine - and she's PISSED. And wants someone else to work on it. I laughed, and said... "Well, Gladly, Then..."
Passed it to the other senior guy there, when he came in, told him the backstory, and he says "I don't even KNOW her!!!" Yeah, brother... Love ya. But, she's YOUR problem now....