Take your pick: working in a sandpaper factory sticking sanding belts together or packing agro-chemicals in a paper suit that did very little to stop my skin burning.
I once worked for a consulting company that required you to wear a suit and tie (even if you didn't meet clients), work 50+ hour weeks, and I had a 1.5 hour commute each way.
Replacing sewage lines; basically stand in a ditch, rip out the old pipe (caked with ‘stuff’ and worse ‘stuff’) and hope that no one flushes the toilet before you get the new pipe in place
Barista at Citibabes Soho: making complicated coffee drinks for wealthy/celebrity moms and their nannies, taking 5-minute-long orders for baby food assembled just so, smiling with gritted teeth at condescending management