Twitter immediately noticed that Vice President Joe Biden constantly interrupted Paul Ryan during their debate:

https://twitter.com/DanaBryant9/status/256574834182598657

https://twitter.com/montannamarlene/status/256574832945266690

https://twitter.com/LindsayFender/status/256574828356710400

But tweeters also noticed that moderator Martha Raddatz forgot her etiquette guide. She actually joined in.

Ms. Raddatz can find helpful tips here.

Update: