Ouch!

So, we've started watching "The Flash" as a family.  Here I am thinking it's good, wholesome family fun, when (out of the blue!) they pull this whammy of a sequence in episode 11 (season one):

Good physicist guy is caught coming out of a lab by evil head physics guy!  Then good guy threatens to reveal evil physicist's master plan (involving a combination of improbable, impossible, and needlessly convoluted physics) to the world, so evil physicist fights back.

(and here it comes...)

Evil physicist punches back with the hardest blow imaginable to a respectable physicist:

Oooh, the burn. 

Make the pain stop, please!