"Regard each encounter as if it could be your last!"
Teenage Mutant Ninja Turtles Authorized Martial Arts Training Manual #5 (1986)
Even opening this comic means CERTAIN DEATH for you, the reader:
Somehow, I don’t see finding “many, many hours” to spend alone will be a problem for anyone actually using this comic as a training manual:
“Mr. Comic Retailer, do you have a comic book that will instruct Little Billy on how best to disembowel and kill his enemies?”
At last, some sensible advice: