Gas Exchange

This really doesn't have anything to do with anything but thought I would share this with the world. I am sitting here catching up on my blog readings and listening to my 2 1/2 year old twin boys fake burp in bed. They "burp" then say "fart" (apparently any source of gas is a fart) then start giggling. Ok, honestly, I don't know who is giggling harder right now - me or them.