Help! I used CM to place a sleeper bear. Now I can't get rid of it.

[Rabbitslovecactus]

Does anyone know how to get rid of a sleeper bear when placed using the Creative menu? It won't wake up, I can't kill it, I clip right through it when I walk. If I shoot it's as if it isn't even there. The bullets hit the ground under it. 

Thanks

NM, I figured it out. You need to hit the exact block it was placed on. You can't swing at the body itself...