Could a (vibrating and/or beeping) e-collar be used for positive reinforcement, similar to a clicker?

[bogdan]

@johnc101 I have been doing exactly this for 4 decades.
It is particularly useful with older deaf dogs and keeps them quite sharp.

ALL of my dogs love the collar, get excited, and sit for me to put it on. They associate it with getting out to work, which they love.

Cheers!