one thing they nv tell you about working with siding:

You know how when you walk into a dark room, you can't make it out and have to wait for your eyes to adjust?

Working with white paint and siding can cause the same thing... Only, instead of a room, you turn your head and everything is that way. The brightest day looks like night, and the brighter the day is, the darker the rest of the world seems in those moments...

Just a weird thought