Anyone with a dog can back me up here: puppy farts are as sneaky and silent as a ninja. You could be minding your own business, just innocently walking thru the kitchen, when suddenly you stumble into an invisible cloud of doggy gas that makes your eyes sting and your stomach heave. Forest usually doesn't make a sound when he farts so most of the time I have no warning of the God-awful trouble leaking from my puppy's butt. At least doggy poop is visible and can be somewhat contained in a plastic bag. Doggy farts are just an intangible mess.
The last time Nick suffered an encounter with Forest's puppy gas, he sarcastically suggested what I thought was a brilliant invention. We need to strap a machine to Forest's butt so every time he farts it makes a sound and emits a black vapor that clings to the gas particles. That way we'll be warned both visually and audibly that there are puppy farts in the room. Brilliant I say!