Automatic unsmoothing of sharp corners

I've been using grease pencil a lot lately, and I love it. One thing I like especially is the smoothing of lines. But when I come to a sharp corner, that corner would also be smoothed out. My proposal is that when you draw and come to a corner, a short pause in the stroke would tell blender that "this is a sharp corner", and creating a sharp point there.

In other words, you would draw as regularly, but when your cursor comes to the sharp corner, you would stop and hold the cursor there for a brief moment, before continuing in the new direction.