But not Billies. Now there's a smell. And they have the personality of - well - you know that homeless guy who wandered around mumbling how he hated everybody and threatened everybody? Billy goat. I totally agree about the cows. Goats aren't too bad either. Either animal will do a good job of mowing your lawn. My uncle was once out of town for two weeks and the front lawn got out of control. He let the goats loose for a couple days and they took care of it.