On the episode that aired on October 12, SHINee did a random player segment and decided Onew's finger flick on the forehead would be the�punishment if anyone made a mistake.

SEE ALSO: Han So Hee spotted meditating through an update on social media

Taemin talked about getting hit by Onew before, saying, "I've had been hit before, out of a curiosity... I felt a bit dizzy and it smelled like blood afterwards."�

Minho added, "I tasted metal in my mouth."�

Jonghyun unfortunately, messed up the choreography the most and ended up with a red, swollen forehead after Onew's finger flick.�

Check out the video clip from 'Weekly Idol' below!�