I'll allow it is a real problem, Jim. If the police stop you, you'll likely wind up in the slammer, blowing into balloons & giving blood.Ferris Pindell, myself, John Whidden, David Tooley and Scott Fletcher just can't get the smile off our faces.
The home remedy is to put your thumb on the workbench & rap it with a small ball-peen hammer. You need enough force to cause a bit of pain without doing serious damage. It is my belief that you can either vary the size of the hammer or the force you hit your thumb with, but to get statistically significant results, you'd probably need to do about 50 tests each way. The plus is the smile should be long gone.
Maybe acupuncture would work?
Merry Christmas