Dogs and marshmallows living together. Mass hysteria!

Luke Skywalker the Great Dane is terrified beyond the capacity for rational thought. And with good reason:

So, we're all on this dog's side here, right? I mean, how many of us would not be a bit freaked out if we suddenly found a person-sized marshmallow walking down the stairs of our home? And, you know, it wouldn't make much of a difference if we recognized it as a costume. 

Sources: LayaLukeTV | h/t Laughing Squid