When I am in ground station I always climb to 150 feet or so to start off just to be on the safe side. I dont like to watch it gradually gain altitude to the next waypoint. I was bringing it up to set a flight plan and guess I got distracted. I started plotting my course and got the altitude where I wanted it and hit GO. I looked up and realized I was only about 30 or so feet up and watched in horror as my bird flew straight toward some power lines. I didnt even have time to react and flip the S1 switch. I missed it by about a foot. Word to the wise, always double check lol. As soon as you get comforatable its easy to make a dumb mistake that can be costly.