The reason your dad never came back with the milk is 'cause he ran 88 mph downhill.
Downhill Jokes
Jack and Jill went up the hill each with a buck and a quarter. Jill came down with $2.50 and Jack came down smiling.
What do you call a bunch of white people running down a hill? An avalanche.
What about Mexicans you may ask? A mudslide.
What about black people running down a hill?? A jailbreak.
What goes black, white, black, white, down a hill?
A fat nun.
Why did the toilet paper roll down the hill?
Because of gravity.