there was a story a few years back... don't know where it came from, but the couple was splitting up. he had a new girlfriend and his soon to be ex wife wanted the house, but the new girlfriend wanted it... so Wife... took raw shrimp, and stuck them inside the curtain rods. eventually, the smell drove them out, they said the ex wife could have the house after all, and they packed up
everything, including the curtains, and the rods.
I doubt it's a true story... it's funny tho' even if it's fake... but that would bring lots of maggots, maybe the old tenant was a food hoarder and kept a sammy hidden in the vent?