because they didn't play well LOL! the girls are so funny with their toys. Missy wants whatever Chelsea has, and Chelsea gives in. Sometimes they will play tug with each other, Missy always wins. But they love squeaky toys....Chelsea liked them the most, but with time, Missy has turned out to love the....to the point of operating to get the squeaky out. Missy also loves to steal pot holders and dish towels, so I have had to do everything I can to thwart her. She's such a stubborn dog! She'll fun from us (loves a game of chase) and she'll try to hide those things we're after in the Wisteria. She also "hides" behind the trunk of the tree in the backyard. I know she's hiding because she pokes her head around the trunk and then draws back quickly then tries to surprise Chelsea!