I am also interested in letting my future grey remain flighted. Of coarse I know some of the household dangers to watch out for like opening doors, fans, mirrors, glass doors, windows, cooking or like a sink full of water or even a toilet a bird could drown in. We have one flighted bird we let buzz around the house a few hours a day. We are just sure to watch him closely and lock up our cats, one of them I'm sure would love to eat our Blue. You should never leave a bird out of the cage unattended, but in my opinion especially a flighted bird. But our Blue is no AG either so as far as any habitual things they may pick up I have no experience.