My neighbor has a big AB boy. (Petey) He is one of the biggest goof ball dogs I have ever seen. However, don't let the fool you. The first time we changed dog sitting procedures to keep him away from Jake we had quite a surprise. The first time we walked through that door, this massive white monster with teeth bared came out of the bedroom. Now had I not known Petey very well (helped in some training) I would have headed out that door and never come back. But I stood my ground and when he saw that it was me, turned right back into the goof ball we all know and love. I know he will sit and watch people out the window without making a sound also, but step foot in that house and it's on! Maybe that is how Ike is?