I think my engish bulldog has. She always wants to attack or bite anything thats an autobot but she doesn't do a thing to my decepticons. She especially doesn't seem to like cars, so most every autobot I have is on her kill list. Where as with Starscream, Thundercracker or even my MP Skywarp, she will sniff them, leave them alone ands sometimes lick them. I think it's funny and it seems like she's chosen her side as well. Thankfully, she is a small dog so she can never reach any of them so no worries about that.