Well, they're not that big, but they're mean. We get packs of young toms in the parking lot at work every now and then, and the best thing to do is to wait for them to move on, because they will peck and kick you and can do substantial damage.
And eating? It's probably the fowl that has the least amount of taste of all, and they tend to be very dry, even when cooked to perfection and people swear up and down that they're juicy. Compared to even drier turkey, perhaps, but not juicy compared to anything else.
And they're so big that unless you have a huge family, you'll eat leftover turkey until it goes bad, which is a big waste.
I had half a Cornish game hen with stuffing, bean casserole, mashed potatoes, giblet gravy and cranberry sauce. That's plenty of food for one person, and they're much juicier and tastier than the turkey, and something I don't eat on sandwiches year round anyhow. And I won't be eating leftovers Friday, Saturday, Sunday, Monday, Tuesday... (damn, I sound like Rebecca Black.)