Thanks to Aerowolf for the link and book recommendation

Here at Slashdong, we really arn't looking to hook electrodes directly into your crotch. Some people are into that, and that's cool. We respect electricity, however, we don't wanna fuck it. Even so, it's always nice to know the limits you can put yourself to, just so you know what's safe and what's stupid when you decide to start sex toy engineering projects of your own. Learning about electricity is an absolute must if you're going to try any of our projects. Now, there's no replacement for a good physics text book. Surprisingly though, very few physics text books talk about electricity in terms of how they affect human body parts with lots of nerve bundles that will most likely be very wet. So, we recommend Juice in place of that.

For those of you that are too cheap and just want shit for free, we also plan on doing a few electronics, soldering, and "This is how sex toys work" tutorials in the near future. Still, $13 is a small price to pay so that we can blame someone else for you frying your thighs.