The new kit, Feliks, is about to be turned into a glove liner - I've about had it.

He doesn't bite aggressively with Mishka and Laska, but he'll annoy them like mad. Myself and my husband, however, he's BITING. Like really biting. Feet, toes, fingers, heels, legs... Anything he can get his teeth into. Achilles tendon seems to be a favourite due to the way I jump from it. And it's not just biting, but he'll also back his little butt up and launch at my leg and try to climb it to bite. Flying leaps of tiny teeth of death. What the hell am I supposed to do with this? Is this a phase? I've tried scruffing, hissing at him, time outs, deflecting with a toy, positive and negative reenforcement... 

I don't want to give him up, because I hate giving up on anything, but my gosh. I'm losing my mind with this.