If you happen get a notion to make a complicated dessert--one involving batches of shortbread, caramel, and melted chocolate, it is imprudent to simultaneously saute garlic and onions on the other burner.
When you chop the onions, you see, you might accidentally drop them into the bubbling hot sugar syrup.
Bacon infused caramel...maybe. Onion? no.
We're having shortbread drizzled with chocolate for dessert. Forget the caramel.