Slug or Caterpillar?

Right now I'm leaning more towards slug, but I'm really just not sure exactly what this little guy is.

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Cute little guy

Again out at the Smith property

Johnny Paycheck, Armed and Crazy

With songs like, "Just Makin' Love Don't Make it Love," and "Me and the IRS" I'm beginning to wonder how on earth it is that I havn't managed to pick up this guys album yet. Armed and Crazy is on my list.

Chels