I'd not.

each to their own

I rather dislike the idea of my skin or clothing getting piss on.

rather mine than yours though

yes, I'd rather yours than mine.

oh, i'm surprised

Why?

i thought you'd rather it was your own

That's not what I meant, I meant I'd rather piss was on you than on me.

oh, i thought you were saying you'd rather have my piss on your clothes than your own

No. That would be quite weird.

yes, that's why i was surprised

your surprise is not surprising once the misunderstanding has been realised

no, it isn't.

Indeed.