Now I want ten laps from those who are not their roommates' mama

Dr. Lee:

Good morning. The Band:
Good morning. Dr. Lee:
Good morning to music. Good morning and welcome to Atlanta A&T University marching band training. The next two weeks will be your introduction and possibly induction into a great marching band legacy. If you are here, it's because you believe in musicianship. If you are here it's because you believe in Coltrane, Miles Davis, Stevie Wonder, and the elements known as Earth, Wind, and Fire. If you are here, it's because you have a fervent, unequivocal belief in teamwork. [Several students just arrive at the A&T field] Dr. Lee:
And if you wish to remain here, you better start believing in being on time. [looks at Ernest] Dr. Lee:
You... [points to him] Dr. Lee:
who's your roommate? Ernest:
Uh, Devon... Miles, sir. Dr. Lee:
[looks at Devon, walks off the platform, and approaches him]
Eyes front! Devon:
Hey, what's up, Dr. Lee? Dr. Lee:
It's all good, Mr. Miles, glad to have you here. Devon:
Thank you, sir. Dr. Lee:
Why was he late? Devon:
I, um... guess he overslept. Dr. Lee:
Well, why didn't you wake him? Devon:
I'm not his mother, sir. Dr. Lee:
I asked Mr. Miles why his roommate was late, he says he guesses he overslept. I asked, "Why didn't you wake him?" and he says he is not his mother. Section leaders, what is our concept? Sean, Tuba Section Leader, Sax Section Leader, Trumpet Section Leader:
One band, one sound! Dr. Lee:
One band, one sound. When one of us is late, we are all late. When one of us looks or sounds bad, we all look and sound bad. So what's the concept? The Band:
One band, one sound. Dr. Lee:
Now I want ten laps from those who are not their roommates' mama