Dang Nabe !
I like that song too . Not so much , if I knew that he'd (or someone had) clipped the thing from a friend of mine. Think I'd post an MP3 of what you wrote on every MP3 site you could find , then when some Lawyer type comes along and says "You better take that down , you're infringing on a copyright." you just say back "see you in court , and do your homework real good , hear." And when the high-priced Lawyers do such a convincing job of proving similarity to the judge , you ask about origination and bring out your copy of what you posted with a date and a copyright notice and ask the Judge "Where do we go from here?"
Best of luck...,
Pete

Here we are wracking our brains today
to write lyrics that rhyme
and if we succeed, they'll end up in time
as tommorrow's cliche's...
Pete