Recently had a 3-week renewing guest who worked for city street cleaning. Almost didn't let him renew the final time. One previous review had indicated that he was a bit messy.
Pros: he cleaned up every piece of trash in a 2-block area, making me our neighborhood association head's favorite homeowner of the month.
Cons: in addition to being fairly messy, and leaving doors open including to the outside (still winter, folks) and generally -- well, I think he likely suffered from some cognitive difficulties and should cut him some slack -- but he tracked dirt and grime throughout the house etc which took us about 3 more weeks to deal with, and he moved all kinds of things (no, the broom and pan do not belong in the pantry, ICK).
I considered what to write all the way up to the 14-day limit but couldn't figure out what to say that was fair, and missed the deadline because of one emergency or another.