Is it Possible for such a cute 17 month old to be sassy?

This morning Addy found Kevin's cell phone. She loves his phone and he has yet to figure out not to leave it laying around. Addy took it from his night stand and was sitting on the floor playing with it. Kevin came into the bedroom and saw she had the phone. He said " Addy can I please have my cell phone?". Addy looked up at him and smiled at him laughed then continued what she was doing.. Kevin then said " Addy I need the phone please." Addy then shakes her head no and continues what she is doing. Kevin then says "One." Addy pipes up clear as can be "Two" then laughs. It was soo funny.