Lady doesn't even bother fighting it. The minute she sees that grooming box (the tool box), and I put the halter on her she starts relaxing. The pic in my avatar I had just started picking her mane out and she already has the droopy eyes going on. Her head gets lower, and lower, and her eyes get heavier. If I don't make her move occasionally she goes completely to sleep, and eventually lays down. The first time it happened it scared me, but since then it has become the usual thing, so I just make her move some to wake her up.