I learned mis-en-place from a bike mechanic, and 20 'ingredients' isn't even table stakes for a mechanic (unless you count each wrench or socket set as 1 tool, and then we're close).
There were only two 'adults' in that shop - the manager, and Bob, the senior mechanic, and I'm pretty sure both of them were maybe 28. The rest of us were college age. He was constantly irritated that we couldn't seem to keep our shit organized. Most of the time this was some muttering or making little jokes at our expense.
Until you wanted to borrow one of his tools because you couldn't find yours, then you got an earful.
I was pretty sure I didn't like Bob at first, but now I'm not so sure.