Are they warning snaps or are they "I'm-going-to-kill-you" bites? There's a huuuge difference between the two, and I let my dogs dole out their warning snaps all they want. That's how Giselle lets Ivy know whatever she's doing is not okay. Once Giselle does a warning snap, though, I redirect Ivy and give her something else to do.

Older females usually know how to deal with puppies. They will ignore the annoying puppy as much as they can, but they will growl and grab the puppy with their mouths if they're *really* annoyed. It's not a tight snap, though. It's a big, soft mouth around the puppy's head/neck. It's more like a hand on the shoulder, like, "HEY. That's not okay." So watch Cassie next time. Is it a tight snap or is it a soft mouth "bite"?