two sentence explanation

I was tagged by journeymystery for an explanation of my user name:

Rules: Post the explanation of where your user name came from. Then tag TEN users whose explanations you would like to hear. If you are tagged, post your explanation to your page.

I'm using 3 sentences.

I've used eviltammy as an ID since '98 or so - I have a mind that spends a lot of time in the gutter and an evil sense of humor. The otter part came about because of a joke - an actor that some friends and I liked grew whiskers and, at a con I didn't attend, spent a great deal of time rubbing his chin, which reminded my friends of the otters they had seen at a zoo. So when I signed up for LJ, I decided to go a bit different than usual and made "Otterly Evil" my LJ title and 'otterevil' my user id.

I'm not tagging anyone - mostly because I know why most of my friends chose their ids, but if anyone would like to explain...