Not the Brightest Bulb in the Pack
You know something is wrong in your life when you feel the need to explain something as simple as a lightbulb to someone who’s not in kindergarten. The first mistake this electrician made was to assume that a manager has to be a man. The second mistake was going on a tangent to explain what lightbulbs are.
Seriously, if you encounter such a foolish character, report them to their company. If they’re their own boss, just fire them on the spot and look for another electrician—one that won’t undermine what you have to say because “you’re a woman.” Some guys’ minds really are stuck in the stone age.