What's the most peculiar unexpected visitor (or "pest") that wound up in your home?
Was listening to someone from Algeria who mentioned they often have issues with lizards finding their way in homes. And I was like "at that point it sounds more like a free pet than vermin."
Florida scarlet snake. Disconcerting to find a danger-colored snake in your house at midnight, even if it's harmless. Very surprised I found it before the dog or six cats did.
A friend of mine found one of those slither up some tiny vents and into his parents' bathroom through the heater, in New York. All while his older brother was going number two.