Yea! Just a second, HEY BARTENDER...
They usually are wrong and are typically viewed as a loud-mouth know-it-all who knows nothing otherwise they wouldn't have to take it again.
Often times NOT the person you want helping you with your coursework because they were failures in the first place.
Started at Pikes Peak Community College & University of Colorado, Colorado Springs in 2010.
Professor: "That is incorrect."
Classmate: "Riiiiight, nice going there Round 2."
Round 2: "I took this class last semester, it's really easy."
You: "Then what the heck are you doing here? Nice work Round Two. You're a real winner."
Guy 2: No, man, I had a serious case of round 2.