woah that's serious.. but he was charing them un-attended.. i charge mine right by my desk.. yes its on carpet.. which is even scaries.. but i keep an eye on them.. no matter what.. even if i have a 500000 page essay due. id rather fail it and keep an eye on my lipo.. i will be getting a lipo sack soon.. but now.. i put them between 2 spare rc18r bodies.. and tape the bodies shut.. first with masking tape.. then wish duct tape.. then i use my mom's Goo-Gone to take off the adhesive from the body