No kidding... How about people-shaped dummies? We've got 'Bob' where I train, I think it's a Century product. There are probably others too. Anyway, 'he' is good for general abuse that you wouldn't inflict on classmates, elbow strikes being a good example. (Eye pokes are another). Some strikes just seems to be helped by having a proto-human to bang on, to get around all that stuff that Mom and Dad taught me not to do.
Inhibitions may be part of being civilized, but sometimes, being civilized isn't the answer.