Mike Rowe Waxes Poetic on Castrating Lambs With Your Mouth Mike Byhoff · 01/21/10 10:22AM Mike Rowe, the consummate man's man, regales one of his dirtiest, most disgusting jobs ever on Dirty Jobs: sheep herding. Well, the actual job of herding sheep isn't so gross, it's just biting off of their testicles that's off-putting.