Flush brakes?
I never have, though I know it's the right thing to do.

But in my defense...if the idea is to remove the water droplets to avoid corrosion, how can you do that through the bleeder which is at the high point in the caliper? Water is denser than brake fluid and it therefore settles to the bottom of the piston bore in the caliper which is the furthest from the bleeder valve. So how does flushing the brake fluid off the top remove the water that is on the bottom?

Kind of a serious question.