I've also heard that watersports are problematic.

In fact, I think that Paycom just bounced a site we submitted for review because we had a *link* to another site that itself had no urination, but they had a link to a urination site... so we're suddenly responsible for what's happening 2 links away from us. We removed the link, but I doubt Paycom would be asking if it wasn't a problem for them.