Major Payne

One of my favorite movies of all time is Major Payne, starring Damon Wayans.  He is tasked with getting a disorganized JROTC group at a prep school to win the Virginia Military Games. 
Major Payne comes to meet with the squad and half of them are in uniform, the other half in what amounts to a Good Will's worth of clothing.  They look sloppy, disheveled and otherwise undisciplined.  He proceeds to insult just about everyone in the group.

Boy 1 Sneezes
Payne to Boy: " Did I give you permission to sneeze, Opie?"
Boy: "No, sir"
Payne: "Then you hold it in you big-eared turd..."

He ends up having to do 25 push-ups for sneezing in Major Payne's face

Boy 2 is Giggling at Boy 1
Payne to Boy 2: "bedeep, bedeep, bedeep, bedeep...what are you laughing at pig boy?"
He continues: "...you know what, I'm going to help you make room for lunch Bacon Boy.  Drop down, give me 30 situps now."

A third boy has to give him 20 squat-thrusts (possibly the worst exercise that can be done for punishment)
Eventually Boy 1 has to do 25 more push ups -
Major Payne to Boy 4
"...and what is your damage muscle head?  Are you stupid, ignorant, or just plain old deaf?"
Boy 1:  "Yes sir, actually he is deaf"
Major Payne to Boy 1:  "Oh, thank you.  Now drop down and give me 25 more FOR SPEAKING OUT OF LINE!"
And off he goes to do 25 more push-ups.  This entire sequence has to be one of my favorite in all of movies because Major Payne is just ripping each boy up and spitting them out.  Too funny!