[Caleb Fulton]

I have seen these motors:

1) Smoke

2) De-solder themselves (no joke)

3) Cut off their own fins because the black plastic melted and hit other components inside

4) Break off their black connectors after falling a mere 3"

And so much more...

Just make sure you always have a fuse in there when you're testing and/or messing around with them, and be careful--you don't want your hand anywhere near the pinion when they are just firing up or stopping.