Capacitors

I am more confidant in using capacitors in my DMR build, because I just tried on purpose to connect the wrong poles and nothing happened. Used a AA, 9v, D, and then 3 Ds hooked up to each other. Am I doing something wrong?

I'd also like to know how many of you use them, if there really is that much difference in trigger response (im not going for ROF), and how to make them explode. Also, I ripped a few of an old circuit board. I'll give the uFD and volts later, but how much uF do I need total? An do I need to have a voltage exceeding that of my battery?

Edit: I use those different batteries one at a time in succession besides the 3 D batteries. Those were hooked up to each other as stated.