I have a 5 month old, 15lb, male cockapoo. He has always been very nippy, or as I prefer and believe it is bitey. Is it time to try an ecollar?

Hi,

I've learned alot from your videos and appreciate all that you to to help poor handlers become better pet owners.
I have a 5 month old, 15lb, male cockapoo. He has always been very nippy, or as I prefer and believe it is bitey. I can go into his mouth to pull something inappropriate out, I can go near his food and play with it and he'll do nothing. But it seems to me that out of the blue he will jump up, grab hold of my clothes, rip them and bite me. We could be on a very pleasant walk or hanging out in the backyard and bam, he's at me or another member of the house. He can be good for a day or 2 but then this behavior returns. The corrections that I have used are the "off" command, confinement, yelling "NO!" and bitter apple on my clothes and hands. I'm always afraid when he meets new people, that his jump and bite instinct will begin. e-collar time?

Thanks,
Laurie