Blue: it's obvious that your dog prefers her playmates "Shaken, not stirred." Seriously, she may not have intended to kill the little dog, but this is instinctive behavior. Large terriers are well known for this. Keeping dogs on a short leash is the best way to avoid problems. (She may shake toys more vigorously because they are smaller and lighter than this dog.) Riding a bike with a leashed dog would be bad for both of you. How about fetch and frisbee?