The weird thing is, she knows the leave it command, she will leave the ball when there is not another dog around, and when we say leave it she will drop or not touch anything we say, its just weird, she is persitant that she does not anyone elses pup touching her ball, i have noticed she has been getting better at it, and is mroe tolerent of other dogs and her ball in the park, do u think this is somthing she may grow out of?!?