With the exception of the n-bomb, which only PG uses, every so-called "swear word" has approximately the same emotional weight as "criminy" did in the 19th century. If you're going to get pissy with someone for saying "piss," then you should get pissy with them for saying gosh darn.

That is, that's how it would be if the anti-swearing crowd made any sort of logical sense whatsoever, but they don't and never will, so meh.