Response to my papa's waltz

When I read this poem for the first time I actually thought it was about how a dad abuses his son. The father is drunk and from all the hitting the son is dizzy. But when i read it a second time i thought how the poem could be talking about a dad just having fun with his son. They are both dancing to the waltz. When it says plates falling down it could be that because they are having so much fun by accident they hit the shelves and plates fall down. The mom not laughing and with an angry face because they just broke the plates. So this poem can mean two things. About abuse or about how they are having fun, enjoying themselves.