Pfft I can hove in my livingroom but where is the fun in that... next thing you know "maybe I can practice nose left / right" then WHACK... and yes it can be very dangerous indoors I would imagine... if you hit something and a blade cracked... ouch.

Nope, eventhough hovering inside is not all that hard... keeping it in control once there maybe... the Rex is an outside toy unless as above you ahve a local gym to fly in.