
The judge won't get any comeback as it's not their fault the dogs were entered under them and you have to judge what comes under you.
I doubt very much that they'll be banned from showing. To do that you have to go through a disciplinary hearing in front of the KC panel. More likely a disqualification of the CC and maybe a £50 fine. It happens all the time - people forget or just don't think about it, but hardly any CCs are taken away. This is because the KC obviously don't know who's dogs are boarding with whom, there has to be a complaint first and very few people complain.
Debs