Even the odds of a drone strike are rather small. The odds of a bird strike are much greater. However, with the growing popularity of irresponsible multiblade drone users they are having a simiilar impact on the model aircraft hobby as idiots who fire lasers at planes are having on the laser...
Actually I had the nuclear lab when I was a kid. it was not dangerous. The only source of radioactivity was a small chip of uranium ore, a common part of any decent mineral collection. I am not aware of anyone being harmed by it.
I bought this cheap 405 nm laser off of ebay.
Focus Burn Bright Blue Purple Laser Pointer Beam Pen Durable Star Cap New Gift | eBay
My main reason for buying it was that I have plenty of green and red laser (a few I built myself) but no violent lasers and I wanted to get a look at what a 405...
I have a green laser 301. It's okay but it's unstable. Just looking at the beam it will jump around in intensity from very bright to mediocre and then bright again. It is typical of what I would expect from a cheap 532 nm DPSS green laser. You get what you pay for.
Assuming the laser is powerful enough to burn stuff and assuming it is focusable you need to adjust the focus in order to burn. And, don;t even think of trying to burn stuff until you have an appropriate pair of googles. Otherwise you will damage your eyes.
Most of my family and friends have no interest in my lasers. The only thing they ever say is "they are very dangerous", or "you'll get in trouble", or, "isn't it illegal ? "... I became fascinated by lasers back when I learned about them in high school back in the early 1970's. In those days...
I have ordered from DX as well. Not lasers but other items like LiPo batteries for model aircrafts and I have waited well over a month for them to arrive. DX is often slow to ship and then there are other delays, i.e China post, US customs (since I live in new York USA) , etc. I have had items...
I bought this laser cheap out of curiocity. Best I can say about it is that it works. It's fairly bright and it will burn the common stuff i.e. matches, dark objects, etc. As others pointed out probably a fair percentage of that power is infrared so I would be careful using it. Over all quality...