Hmm. I'm not sure mine arrive with the force of the Guerrilla, though I wish they did! (And I love the mental image). I am rather dismissive of the stork -- usually adults with their own complex lives walk into my head, and I have to tease their pasts out of them. So no stork.

Baraxon suggested a cat (it brings you presents at two in the morning), which almost fits but is a little morbid. Hmmm...