It's a little known fact that Helen Keller was against teaching deaf people sign language and thought they should be forced to use oral language.
Weird.
Last time I forced somebody into oral, I got arrested.
Helen Keller's Language Preference
Explanation
Explain Bear
Alright listen up, this is for you dummies. Helen Keller couldn't hear or see, right? The joke is that the person telling the joke forced someone to do something oral, and they got arrested. It's kinda like a pun, but with sex. You probably still don't get it, do you?