 Yep, those bike helmets save real lives. I was told when I was 12 years old that if you put dry ice in a ball jar, seal it up, it'll blow up. I said, cool, where do you get dry ice at? Someone said, the ice cream man's got dry ice. I said, great, ice cream man's coming by one day, I come out with my little ball jar. I said, you got any dry ice? He goes, what's it for? Put it in his jar, close it up, it's going to blow up. He said, cool, man, here's some dry ice.