I would say, if you are going on holiday and you have diarrhea in the car, but stay-at-home is when it happens when you're at home, so you can easily stay near the toilet.
i think traveling diarrhea accompanies a fever and chills. (and possibly night sweats,) And you usually get it when you go over seas
The place you spend most of your time.
You know where the toilet is at home.