Always

Every single time...

Or, just a thought. Shower before you leave home and use your own.

The only person whose shower I'll use when I go to their house is my grandmothers and that's it. If I stay with friends, I take a shower before I go and when I get back the next morning I take another one.

And I would relate if I used another shower

My shower ah home works backwards (the dial is broken) and I always love it when people come to sleep over and they. Can't. Figure. It. Out.