We had been watching the videos and learning about these PV2 for a while now. We started of with learning on some 50$ quads and they were really fun. Lots of demolition derby in the house with them since they had cages. We finally pulled the trigger on the PV2. I flew it about 5 times and it was easier to fly than the non GPS quads that we learned on. My buddies arrived and it was time to fly 2 at a time on the golf course fairway. It was a sunset flight and the weather was good, but a little windy. We did some racing up and down the fairway at about 30mph. Took some cool photos and videos. While drag racing up an down fairway one of us was at 30 feet or so and the other around 15 feet for safety of course. We were pretty stoked that these things handle so well. The batteries were in need of a charge and it was time to eat anyways. Went inside and put the batteries of charge. About three hours later it was time to fly again. The moon was really bright so we figured what the hell. In the course of charging batteries and eating dinner we also consumed about a six pack a piece. What could possibly go wrong, right? You guessed it. We made the noob mistake of flying at the same altitude while racing to the green and back. I think we only made it about 125' from us and we saw it coming. There was that moment where we tried to create distance between them but they were like magnets. It was a mid-air collision the race was so tight. They met and "space docked" at about 15' altitude. They fell to the ground and tumbled along the fairway.....we both ran over to see the carnage. There was none. We each had a broken prop, that was it. Both flew fine after replacing the props. We had no intentions of shenanigans like this as we never read anything about it and it just seemed like it would be fun. It was fun and we can't wait to do it during the day when we can get it on video, minus the crash of course. I will say that these things are pretty tough and very happy overall with the purchase.