Waylon Jeepers approaches Freakazoid and asks him if he'd like to see something "straaange and mysticaaaal?" Freakazoid, without hesitating for a nanosecond: "NOOOOOOOO!!! GET OUTTA HERE WITH THAT WATCH! LAY OFF THE POOR BEAVERS, WILL YA?!? SHEEEESH! YOU'RE A CREEP! GO AWAY! WE WERE ALL HAVING A GOOD TIME UNTIL YOU SHOWED UP, JEEPERS! UUUUUUUUGH! GO HAVE SOME COFFEE, WITH CREAM, OR SOMETHING! BECAUSE I'LL TELL YOU SOMETHING: THIS IS A HAPPY PLACE!!"
Not only did Freakazoid effectively show kids how to deal with creeps, but he secured himself as being awesome, forever.
Making this even better is that Paul Rugg, Freakazoid's voice actor, improvised almost all of that rant. EVEN better than that is that Rugg wasn't even a voice actor to begin with — he was the show's head writer, and won the role by accident, when he demonstrated how Freakazoid was supposed to sound like to help the casting of the role, and Steven Spielberg liked his performance so much that he said on the spot "the role is yours."
How about the end of that episode, where he makes out with the hottest of the girls who rejected him earlier, lampshading it by mentioning it's "shallow, cheap, and based sorely on hormones" before going back to sucking face?
During one episode, there's a short bit where Freakazoid's entire Rogues Gallery has Steph held captive in a high tower. Freakazoid proceeds to mow through the whole lot of them to save her.