Soon I was using the lock in the knot trick by flipping that last section of rope back through a loop. Well that didn't work to well either. She got learned how to manipulate that out and continued to untie herself. I've tried many different knots over the years, but so far all have been untied. So for years now the Shy monster has been tied up with a bull snap on one end and a quick release hardware on the the other end like this type of ties.
I wanted to take Shy Monster to NATRC trail competitions, but according since she will not stay tied in accordance with their rules, Those plans were abandoned in favor of AERC endurance competitions because they did not have the same rules for tying to a trailer. Here is the Shy Monster on one of our training rides.