Just when you thought it was safe to go back in the living room ...

... someone invented a crazy shark-shaped balloon.

Air Swimmers are remote-controlled toy balloons that come in the forms of sharks and clownfish. Using a few batteries, an infrared remote and some helium, these marine creatures will "swim" through your home, up and down stairs — scaring unsuspecting pets and roommates alike. Get enough of them together — the manufacturer says that any number of the balloons can be controlled in the same space at the same time — and you could have your own air aquarium.

But not too much air! The manufacturer advises against using Air Swimmers outdoors as they're very likely to "swim" up to that big blue ocean that we call the sky and never return.

How to turn your house into an air aquarium
Air Swimmers are remote-controlled balloons in the shape of fish.