I've seen it a few times and even foul hooked them before but this time I'm convinced the mullet ate the jig!  It's been a great bite lately fishing these negative low tides around the mullet schools.  Redfish and trout are stacked up in certain areas and are an absolute blast to catch on artificial.  The action can be fast and furious at times and you never know just what your going to hook into.  I was out on Christmas Eve and good fishing got even better when this mullet decided to make a run on my jig.  My buddy and I couldn't believe it at first, but it was a clean 'eat' as the fish was hooked squarely in the jaw.  I guess you can catch just about anything on a jig.