shapiro and sons storage

The speaker acknowledges that they are inside a locker, which seems reasonable. However, the main discussion is whether or not they will be released, as they are running late for lunch and their mother will be unhappy. Now listen, no one can deny that I am inside the locker. We agree on that. It's pretty logical. However, the real debate is, will you be letting me out? Because I am currently late to lunch, and Mother will be very upset with me.