I just interviewed for an entry level PR job for a state government agency. They told me that they'd like a writing sample to evaluate my writing abilities, which is fair. They said they'd send me a prompt, and that they'd like my sample back within a day or two.
After the interview, they waited until just before 5 PM and then emailed me a 187 page PDF. They asked me to read the whole thing, write a press release about it, and send it to them later that same day.
I wrote back and told them I was no longer interested in the position.