Actually, I typically include the "DPDT" acronym as a test . If you'd reacted with a "Huh?", I would have launched the "Hire an electrician; you can't safely do this yourself" boiler plate.

However, I've learned the hard way knowledge in one area does not bleed over into a related area, for many people. I can't tell you how many graduate chemists I've dealt with who get confused by pool chemistry . . . or who find Chem_Geek just as hard to follow as I do! So, telling my you work with 1,000 HP motors doesn't tell me you know how to wire a 8A 230V motor, in a wet area, using the crappy conduit sold for residential and light commercial use! (Hint: always, ALWAYS use a wired ground!)