It's wrong to be mean to a child.
Ken is at the grocery store with his son Liam who asks Ken to buy ice cream.
Ken wants to respond to Liam's request.
Ken tells Liam that he can't be eating too much sugar, so they'll have to get it next time.
Ken tells Liam that he's a gluttonous little monster who sucks money out of him like a vacuum, and he should shut it.
The other customers are happy to see Ken being conscious of what Liam eats.
The other customers are appalled at how Ken speaks to Liam and are worried for Liam's safety.