I have commercial Angus/ Shorthorn/ Semintal cattle that are human and bucket broke.  I was walking out in the pasture to feed before I went to the hospital to stay with Kathy and before I got the gate shut and turned around 3 of my yearling heifers had me surrounded and wanted that bucket.  As soon as I was trying to scare them away (which did not work), it stirred up the interest of our other cattle and they came a-runnin.  I can't open the gate now so I start swearing at them (more for my benefit) and that does nothing.  So I yell for Casey (my border collie), she comes running and bites the heifer still trying to get in the bucket squarely on the nose.  I flank her around and drive the cows off and clear me a path to the bunk.  Point of the story.... don't go to work without all of your tools.