Antennas have rubber tips to insulate them from lightning bolts. That way it will hit the car and not the antenna which is why tires are also made of rubber. Just be careful you don't run over the antenna or it will puncture a tire and the rim touching the ground will not afford any protection from lightning.
"If you accidently (I can't see anyone, no matter how stupid, trying this deliberately) get the antenna up your nose, the tip of the bare can easily travel up into your brain, where the results will usually be lethal. The plastic tip is large enough to make this extremely unlikely."
You can off an enemy like they do in the movies or on the other hand if you're lucky enough to get the plastic bit stuck up your nose you can sue for millions. Actually a finger produces the usual results and the things you can do with it are simply amazing.
Things I hear on the scanner that make my skin crawl, a 13 year old kid drinking with his buddies in the woods consumed 13 shots of vodka and is now unconcious, the ambulance is on it's way. This condition is life threatening, tell your kids about it and keep an eye on them! Yeah, I'm scanning and typing at the same time and thought I'd relate it to you. Funny how quickly I sober up when I hear something like that.