Tranquility is shattered by...

Imagine this scene: Keira's just woken from her afternoon nap. She slept deeply and so is taking a little while to come out of her stupor. At times like this, she usually just sits quietly on the couch, sucking her thumb. On the weekend, she's done all of the above, except this time she's sitting in Adam's lap while we're taking a blessed few minutes rest, reading books. (Riley's in bed) All's quiet. Then... BLERT! Keira lets one rip*, with the velocity of a jet engine. Ah, yes, she's a charmer. * I hate the 'f' word - fart.