QOD: What’s your favorite way to discreetly give the finger to people?

True story: One morning in NY, after an ice storm, I slipped and broke the middle finger of my left hand. My daughter took me to the ER, and the doc put a metal splint on it, one that went up and over the finger, straightening and lengthening the digit, and then he wrapped it with a vengeance, adding an amazing girth. Thus, I was giving the finger to EVERYONE until I could get to the specialist the next day. Coupled with pain pills, it was a blast!