While not exclusively about JNC's, I've heard plenty of things that would make most of you scratch your head in confusion....
I work at a Toyota dealership on the parts counter. One day while covering the front retail counter, an angry lady comes in and angrily demands a part for some sort of Acura. While noting her present mood, I let her know that I just deal with 'Yota parts and can't help her. She shoots me a nasty look and yells, "Japanese cars are all the same!"

Eventually she stormed out after I informed her that the Acura dealership was down the road 2 driveways over.
I had another customer come in another day. While his english wasn't perfect, it was passable at least. He wanted spark plugs for a Toyota. "OK, I can do that, but what kind of Toyota?" That little question sent him into a [i]fury[i]. He starts arguing (quite loudly I might add) and it goes something like this- "ES A TOYOTA, TOYOTA!" He just kept repeating that, over and over. Also he didn't drive it in, so I couldn't see what it was. This goes on for 5 minutes with him yelling that it was a Toyota. No model or any relevant info, just that it was a Toyota.
Eventually I did get the info I needed, he finally mentions that he had an 80's era truck with a 22RE..... getting him to tell me was pulling teeth..... at least I had the plugs and I sent him on his merry way to terrorize somebody else.
supra goddess wrote:
Many years ago I was trying to get a part for my car through AutoZone, and the guy at the counter asked me if it was carbed or EFI. I looked at him deadpan and said "No Supra ever came with a carb".... he proceeded to argue with me for like 5 minutes straight until I made him come outside and shove his face down into the intake manifold.
I'm not going to defend the guy at AutoZone here as I avoid Pep Boys and that place like the plague and the guy that you were dealing with sounded like a tool, but I think I know what happened, on my Toyota parts database, they lump in the early Supras (pre 85 1/2) in with the Celica 'tab'. The Supra 'tab' on the model page deals with the '85 1/2 and up. So to look for a part for an '84 Supra, you have to go through the Celica stuff. That's probably how he got confused- they probably showed a 'carb' R engine, or the EFI 6 cylinder, he just wasn't sharp enough to catch it.