There is, and I don’t mean this comment to derail your main point, but since you mention in jest something that a lot of people take seriously, I want to get the straight dope out there again.
The idea that public urination can cause someone to be registered as a sex offender is greatly overblown. A paper issued by Human Rights Watch made that claim, it it has permeated the Internet; a dozen cites will confidently claim this is a danger. But when GFactor and I researched the issue, we discovered that it was very unlikely. In most states were HRW claimed it was a danger, the truth was that some other behavior was necessary, such as multiple convictions, was required. In short, it was highly unlikely that a simple public urination, with no other suspicious factors, would be the predicate offense for sex offender registration.