Awwwweee. Congrats on the new addition to you familiy and welcome to Yorkie Tallk! I do know that my Yorkie (Max) is aggressive when playing and actually hurts my boxers. They let him play rough and they are pretty gentle but it still concerns me. Usually, I will split them apart when Max gets over stimulated. It is like his little "time out". Maybe there is a better way of handling it and we can both get some ideas from others. Anyway, I am very happy that Bently and Ruby are buddies!