That's a very interesting point about the heat issue and the policies at the glass plant. I like to think of my EDC items as being able to handle any environment that my body can handle. Perhaps I should reconsider carrying butane lighters and start carrying my permanent match exclusively. <img src="/images/graemlins/confused.gif" alt="" /> I know when I was a kid we used to blow up bic lighters intentionally and it's not the type of explosion you want to have happening in your pocket!