Everyone that has replied has said the same thing, and I totally agree. One thing that I must reiterate is shorting out the leads. This can and will cause a fire to the likes you would never imagine. LiPo batteries are dangerous when maltreated and can cause serious problems.

There was (maybe still is) a video of a van that was totally gutted by a fire that was started by a faulty LiPo. Homes have burned down as a result of the uncontrolled fires caused by these batteries.

Just remember that if they are used properly, they are great and perfect for our applications and perfectly safe.