I've seen that cutter in the bmc pup in workin with now. If he's not getting it done and I run out of time and load him up. Each time that's happened the nexttime I work him he seem grittier and more determened to get it done. I think may have to do with the amout of praise after wards. One time it's (kennel kennel and load up) and the next it's (good boy way to go good boy). And he knows when I'm pleased with him or not. That the bond between owner/trainer and dog.
Amen!