See how much we all (or maybe just me) learn by asking silly questions? Thanks so much for taking the time to explain all of this stuff Circuits. I (and hopefully others) really appreciate it.

Now, you mentioned C4. I know less about C4 than I do gun powder, but I was under the impression that you could set it on fire, or kick it, drop it, etc, but without the presence of both heat and pressure it won't "go off?"