Can't resist sharing my own experience as a dishwasher though given the number of comments no one's going to read this... I was a dishwasher (and everything else) at your standard suburban Italian deli for a couple years in high school. Italian delis are famous for their cold deli sandwiches, but also for things like bacon, egg and cheeses for the breakfast crowd, and chicken cutlet, chicken parm, sausage and pepper, meatball, etc. sandwiches for lunch. And the great thing about it is that these things, historically anyway, are cooked on-site, starting first thing in the morning, using your standard baking sheets/pots/pans, which (surprise) creates a lot of dishes each day.
Now this deli I worked at had no machine so all those pots and pans stack up and by afternoon, when the cooking is done, there's a huge stack of dirty dishes. My first day working there, I show up after school and since they know I'm coming there's the huge stack of dishes waiting for me, the new guy. They tell me to get cracking on it and so I don the apron and get going. This is maybe at 2pm.
As I'm working away, folks periodically check in with me, kind of with these quizzical looks, but they don't really say anything other than an "all good?" type of vibe. And I'm sweating my ass off because the amount of char/build up on these stainless steel pans/pots/etc. is off the charts. But I'm diligently working away getting them absolutely friggin' spotless! Like restoring them back to their brand-new state.
Well, you see where this is going. The guy who got me the job, a friend who's also a high school guy but a bit older, comes in the back, as I'm finishing up, maybe 4 or 5 hours later. The two owners of the deli also come around the corner. My friend's like "dude, those have never looked like that," pointing at the huge stack of cleaned pots and pans. And I'm like "whattaya mean?" And he's like "all of that black stuff? Just stays on there!" I'd literally cleaned off years of charring that had built up. He slaps me on the back, starts laughing his ass off. One of the two owners, when he stopped laughing, was like "I didn't know why the hell it was taking you so long but... they look great!"