Unbright Light

Today I worked on installing my grandparents' floor with my father. We finished the upstairs, and have just started the downstairs. They had some lights installed, so I wanted to see how they looked. I flipped a switch, and instead of a light turning on, I got shocked. It was a bit jolting, but not too painful. I accidentally touched a wire or something. I learned a good lesson, sometimes it is not too bright to try and turn on a light.