The horror, the horror! It's every child's worst nightmare - catching your parents having sex!
An experience so traumatic it has left many a child scarred for life (I know of one lad who left home for two days, sparking a police hunt, after witnessing his parents 'at it' because he thought they were so disgusting!).
Thankfully, this hilarious video, which has been watched more than half a million times on You Tube, is fiction - a promo for a US pasta sauce on the theme of growing up.
But the common bond of shared pain is right there, etched on the little boy's face!