Draymond Green should NOT have to face NBA discipline over his penis pic mishap over the weekend ... so says Shannon Sharpe who says the public shaming is punishment enough.
Green has already apologized for accidentally putting his junk on Snapchat -- he claimed he was trying to send a private message but "kinda hit the wrong button" and unleashed it to the world.
Sharpe says he feels bad for Green's family ... for having to try to explain the situation to their friends.
And then he had a simple piece of advice for anything thinking about using social media to send crotch shot .