A Man

This morning, while I was making the grocery list, Brayden came into the kitchen and announced, "Mom, it's 67 degrees outside."
Well...Ok......I am stumped for what to say next, and trying to figure out how he knows it is 67 degrees....
Then he notices the empty box of Diet Coke sitting next to the trash can.
Brayden: (picking up the box) "I'll take the coke box to the trash."
Mom: "Just wait a minute and we'll take all of the trash out."
Brayden: (already on his way toward the door) "Mom, just let me do what I've gotta do."
Mom: trying not to giggle.
Brayden stops at the door, looks me in the face, and announces in all seriousness: "A man's gotta do what a man's gotta do", turns around and walks out the door.
He was pretty quick taking the box to the trash can. He stepped back inside and said: "Wheew, I'm glad that's over."
Mom: "Me too." (I'm not sure why, though.)