Isaac Newton saying are we there yet

Overheard conversation between my two Darling Daughters —

DD1:   Mom!   She’s breathing my air!

DD2:   Mom!   Tell her to stop touching me! (laughter)

DD1:   Ummmm,  technically,  if I’m touching her, then she’s touching me!

….because, according to the laws of physics, for every action there is an equal and opposite reaction.  Ha!

Me:   Is anyone writing down this conversation so that I can post it to my blog later?