Originally posted by My Peanuts
He's such a little weirdo
Well, yeah. He is a JRT after all.

I would try the NILIF program where he must work for everything - food, going in and out the door, getting a scritch from you, anything at all really. You can have him do a sit, or a down as his work. I would also move him out of your bed. I have had to do this a few times with Chester, but so far not Millie. It's a very hard thing to do, but once Chester snapped at me, that was all it took for me to understand the gravity of the situation. He was then crated and put on NILIF, until I felt comfortable enough to slack off. He now sleeps in the bed with us again, and has for some time with no problem.

You won't like it and neither will Harley, but I would stop this behavior now, before he nips you like Chester did me. I was very mad at him and (sounds stupid) my feelings were hurt by it for quite a while.

I doubt it's anything physical, but more likely he's just feeling stressed, or feels like he's ready to challenge you for Alpha.