WINNER's Nam Tae Hyun seemingly shocked everybody with his attitude on the second episode of tvN's 'Actor School' on February 11! 

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On this episode, before Park Shin Yang checked their homework, he requested a game of foot volleyball, so his students excitedly complied.  During the game, Park Shin Yang then said to his students, "Try expressing the ball."  Be the ball.  You are the ball.

Hearing his directions, Nam Tae Hyun said, "I don't know why I suddenly have to become the ball." When Park Shin Yang opened his mouth to respond, Nam Tae Hyun cut him off with, "I'm not done talking yet," after which, he bowed and said, "I'm sorry."

Everybody was taken aback.  He explained, "This was my acting," shocking everybody a second time with the plot twist.  Park Shin Yang accepted this with, "It was an unusual try."  Oh, Nam Tae Hyun, you be trollin'.

You can check out his "being alone" acting down below.