They decide to go to the mall to get him the hottest toy for his kids.
Dennis is enraged when he discovers Mac has slept with his mother.
It sends her falling into an overturned stool, landing on her neck to the sound of a bloodcurdling bone crunch.
There had to be the right balance of coarseness with sweetness; too much gross-out stuff would have made the whole thing a juvenile affair, but I doubt many Sunny fans were looking for sap, either.
Mac is too fat to fit into a storm drain.
Then he keeps getting the lyrics of his big song wrong.