There is always lots of controversy surrounding Fix-a-Flat and other emergency tire repair products. The stuff is despised by most technicians at tire shops, thanks to its all-enveloping gooey nature and foul gases. But there have also been claims over the years that a can of tire sealant can spontaneously explode in the trunk of your car. Fix-a-Flat claims that this is absolutely not a problem. To be honest, I went along with their claim since it seemed to be based on science (and research, I hope), and I've personally never seen a can of sealant fail in that way. Then I hear from Brad, who claims he personally saw not one, but two cans of Fix-a-Flat explode in his trailer. I have no way of verifying his claim, so the best I can do is pass it on to you for you to digest.
I'd love to hear more thoughts on the subject, or more experiences if there are any.