When I was twelve, hear me twelve years old, I was camping, and something happened and I got BEAR SPRAY on my face, eyes, hair, shoulders, neck... It was the worst pain I had ever felt (obviously) but the reason I am mentioning this is that while pepper spray is rated at about 2 million Scoville units, Bear spray is rated at 3.3 million. I was blinded and felt like I was on fire... from now on I don't care WHO attacks me I will NEVER buy any kind of defensive spray.