Yup, slicers are the biggest culprits. They old slicers were wonderful. One cover plate on the blade and, you could easily clean the full surface and both sides of the blade. Now there are multiple covers on the front, back, built in sharpener (which no one uses) and even when they're all removed, you still can't easily access the blade to clean it. Worse, there are now a bunch of new crannies and hiding spots for food to accumulate. Old slicers are definitely worth rebuilding even if it costs as much as a new slicer.
Every new employee to any slicer I've taught them to use and clean, I tell them, "every meat slicer in existence is haunted by evil spirits who demand a blood sacrifice." And, that's not so far from the truth. If you want good clean slices, those things are razor sharp. Trying to clean the blade with the guards off is just asking for a slice across your hand. I have a small scar from one. I took one guy to the ER for a major cut. (These days, they make cut-proof gloves just for that purpose.)
When the Hobart tech was servicing our mixer, it was a 2 person job to lower the motor into place. We use plastic buckets if we need to add flour. Best part about the mixer: it's right next to the walk in so every now and then we push it against the door essentially locking the boss in there for a while. It turns funny when he goes into caveman mode and starts kicking the door.
FYI, those safety knobs so that you're always able to open the door from the inside are pretty easy to disassemble. I don't know how many employees we locked in the walk-in over the years. The first time we did it to an annoying coworker, we left all the parts hidden inside the cooler. After locking him in, and listening to him yell "let me out" a couple of times, we rattled the door handle a few times. "Oh my God! It won't open! You must have to put it back together to get it to open." Of course, even though the guy was a valedictorian, the thought never occurred to him that he had just opened the door 10 seconds before being locked in. So, we told him where the parts were located. He had to disassemble the inside part, then insert a pin back in, then reassemble it. As soon as he acknowledged he knew what to do, we shut the light off and left him. He reappeared about 10 minutes later.
We locked him in a room once - reversed the door knobs. You needed a key to leave the building, but anyone could walk in off the street into that room. We lost that one though - main power breaker was in that room. Locked him in a car - manual windows and we removed the handles from the inside. And locked him in a dough cabinet, spun it around a few times, ran it out the door, across the parking lot, and let him think he was in the middle of the road. And, we locked him in an ice cream freezer (the kind with the little rectangular doors that open on the top) - left one square open for his head to stick out. He didn't panic until we debated how long it would take to make the entire freezer into one giant block of ice if we slowly added water. And, for Halloween one year, those endless cloth rolls for drying your hands (a company had us use one on a trial basis for a week to see if it saved on paper towels) - we turned him into an immobile mummy and left him propped against a wall. It's not nice to not pull your weight when it's really really busy. And, when it's not busy, well, your coworkers make you pay for it.