I have come to a definite conclusion.

If you have construction workers, of any kind, working on your house, they will need to use your bathroom.

They will need to use your bathroom and they will use your bathroom and they will miss the toilet.

And you, being unaware of such occurrences will absentmindedly step in this man pee, leaving you to clean both your floor and your foot with proliferating annoyance.

I'm not saying construction workers will miss all the time, but on an average of 2 days at least one of them will miss at least once. Just take my word for it.

You were warned.