Plastic clip failure

I forgot about another change I have made to my classes. No device
with a plastic clip that is located so pressure may cause it to snap
open, is allowed any longer.

shelly...

After having a serious puller, I don't think that's an unreasonable
policy[1]. I was eventually able to train Elliott not to pull, but
I could never completely trust him not to bolt after wildlife. I
never trusted a plastic clip collar on him (aside from just holding
ID tags), because he was strong as an ox and I was concerned about
the clip failing.

[1] One of your jobs as an instructor is to teach proper equipment
use, along with the strengths and weaknesses of the tools your
students are most likely to use. Plastic clip collars are
ubiquitous, and only a small percentage of them are likely to fail,
teaching your students about the collar's limitations seems to me to
be a good idea.

I like snap-on ID collars. They stay on well most of the time, but
under enough pressure, they will break open. My dogs have quite a
wardrobe of them (they've been wearing Mr Boh collars this last part
of summer and early fall
During week one, we tell people that we don't like to attach leashes
to ID collars, because if there is failure of any sort, the dog is now
off leash and no easy ID (many are chipped or tattooed). We had been
allowing some dogs to work on a second snap-on collar, but no more. We
had a failure (a rare dog not wearing a training collar of any sort,
which is fairly uncommon) a few weeks ago, and the risk is too high.
So it's going to be martingales at a minimum from now on.