When my cats are home alone, if someone drives up and opens their car door, they get inside. They also leap into moving strollers (with babies inside). Who knows what theyd do if someone came to the door (sigh)
To encourage upward growth, pinch off new buds when they appear below the top leaves on the plant stalk. With proper care, in three years your Avocado will grow to an elegant, large-leaved houseplant about 3 feet tall.