Keeping it in your car during hot weather, exposing it to the sun causing magnification of light through the bottle, and particularly being next to open flame while smoking in vehicles or grilling while enjoying this weekend can lead to disaster.
I guess I can see why... It does have a high alcohol content, but I sure can't imagine drinking hand sanitizer. I bet it tastes like crap and stings to boot! But according to recent reports, that is exactly what teens have been doing in pursuit of a cheap buzz.