The only scary time i had with the modern dji drones was in the early days when I was flying one about 1 mile away and all of a sudden something interfered with the drones systems and it was totally lost and proceeded to try to return to me by speeding off in the wrong direction, alarms going off all over the place and all the readings including height was screwed. Luckily i manged to get signal back and gain manual control over it and fly it back to me.
I was bought a cheap drone as a birthday gift about 4 years ago, took it to France on holiday at my mum's place, first flight, all charged up and took off. It hovered in front of me for a few seconds and promptly ****** off into the distance and ditched itself into the adjacent field never to be seen again. Having found the drone on Amazon, lots of people had the same issue with it.
