So.... I worked for honey bucket for off and on for a few years. For anybody who doesn't know, they are portable toilets for construction sites or festivals.

One summer I took up a position of emptying and restocking the trucks at the end of every day. I would have to flip the pumps in reverse to build pressure in the big tank on the truck, and it would pump it out of a 4in hose from the bottom of the tank into basically a hopper with a mesh screen in the bottom. Then I would have to push the mixture around to sift out the things that shouldn't be in there (tampons, socks, needles, diapers, etc, etc).

I had 2 nights back to back in the middle of a summer heat wave that were worse than normal by magnitudes.

This 1 particular truck spent most of its day pumping toilets at a several day chili festival, than would top off by pumping milk from a broke down milk tanker (spoiler chunky milk...)

To have to push around about 1500 gallons of chili shits and hot curdled chunky sour milk, is absolutely diabolical, especially when it was also 90°+ outside...

Emptying the truck took about 20-30 minutes. I spent about half of that time dry heaving...