[FinB] Benji is the behaver. Whenever Heidi uses the can ope…

[FinB] Benji is the behaver. Whenever Heidi uses the can opener in the kitchen, her dog Benji comes into the kitchen and sits behind her. Benji does this because, in the past, when he sat behind Heidi when she opened cans in the kitchen, sometimes Heidi opened a can of dog food and gave it to Benji. What is the function-altering effect of the consequence?