I'll pee in your pool on mars too, if you go there! Just to be a bastard and show you that leaving earth and traveling to Mars can bring on the same level of bastards that are here on our blue marble. Then we will fight about free speech because we are on Mars and that's a whole nother level of free speech!
Don't waste your pee on Mars! We have to turn that into water or we can't have pools!
And yes, that's a long journey in a tight space. Should help sort out the wheat from the chaff. Hopefully Musk thought about ejection seats.