Danny Guselli laughs as International Men's Day and Toilet Day fall on the same day saying that can't be a coincidence.

I’ve never really questioned why men spend so much time on the toilet. When I was a kid, almost every bathroom I went into had a roll of toilet paper to one side and a stack of magazines on the other.

It’s a scenario familiar to many—stepping into a bathroom only to find that the previous user has neglected a seemingly simple task: flushing the toilet. While this behavior might appear trivial, the ...