The Big Bang Theory has been onscreen for almost a decade now and hasn't failed to please the huge audience it currently has.
After writer Steve Molaro, cued up an outtake from season 6 on stage, Cuoco had to come clean about her on-set injury.
As reported by EW, the actress said that she and Galecki — who portray Penny and Leonard, respectively — decided to add their own touch to a season 6 fight scene because they thought it’d be funny if the date went really, really wrong.
In the fifth-season episode "The Speckerman Recurrence", it is revealed that Penny was a bully during her time at school.
However, she seems to be genuinely unaware of the hurt her actions caused, and upon her realization, she attempts to make amends with a classmate she tormented, with little success.
Season 11 of the show is currently expected to air mid September 2017, immediately after Season 10.