I got my flu shot. It's an employee benefit that's even better than the two dollars a day credit in the cafeteria. I go every year.
This year, the nurse giving the shot told me to relax my arm. "More," she said. So I let my arm hang limp at my side. And I barely felt the needle stick!
She told me that especially for flu shots the impact is lessened with a greatly relaxed arm, but this also applies in general, to any kind of a needle stick. It's easier when the limb is limp.
I wonder why it has taken 62 years for someone to tell me this.