I think the lowest of the low jobs in China would be the lab where they have to evaluate the anal swabs. What a joy it must be to wake up every morning! Then, there is the guy who has to haul them to the incinerator or dump.
Incinerator? This is China we're talking about. One side is unused, they're still good for other purposes. I'm sure they are shipped out to various industries in China so that unused side can be used in things like food prep.