Atlas April, Day 5: Are you a man...or a mouse?

There's a lot of text (in Chuck's own handwriting!) in the below Charles Atlas comic book ad. But read it carefully, as there will be a quiz following!


Charles Atlas advertisement in DC Comics cover-dated November 1960
ad copyright ©1960 and 2022 Charles Atlas Ltd.
Okay, here's your quiz question: where does it say in the rulebook that a mouse can't use the Atlas program?!?


from "Muggs Mouse" in All Great Comics (1945 series) one-shot (Fox, 1945), by Ab Newton
It doesn't say that anywhere. But...it probably should.