I was in an adjoining room when Princess Leia and R2D2 were having the following conversation...
R2D2: Princess Leia I have something to tell you.
Princess Leia: what?
R2D2: I'm a good boy because I snitch on people.
Princess Leia: thats awful
R2D2: why?
Princess Leia: because if you snitch, you get stitches.
R2D2: what are stitches?
Princess Leia: It's when parts of your anatomy are stitched up to stop you being a snitch
R2D2: whats anat....
Me: (running in screaming from another room) STOOOOOOOOP
Parental Note: It is with absolute certainty that I have come to the conclusion that 15 year olds (Princess Leia) have evolved a particular aptitude and ability to cause their parents extreme cardiac reactions.