The basic joke setup is an expectation that the training is done for a more noble cause than impressing a girl. Then the punchline is doing an environmental crime for an old lady. (Also, you can see font change on the battery part which might indicate that the original comic used to have a wholesome message.)

+ While being chased by wolves/soviets.

Some people think discrimination and inclusion are zero-sum games when they tend to be in fact transitive.