Immersion therapy? Anyway I've heard such smells also referred to as 'low flying ducks' and 'shooting a bunny', but I'm pretty sure only dogs are capable of true eldritch horrors. The worst was when my childhood dog would let one loose and then slink out of the room before anyone could smell it. Or in my case, since I can't smell, taste it in the air. Which is much worse, believe me.