I just completed a week of fall vacation. I attended Mass where I was and sat close to the back of the Church.
At the sign of peace, I extended my hand to someone near me to shake hands, a husband and wife couple. They smiled at me but did not extend their hands.
At first I though how rude of them. But I realized they may have been germaphobes, one of the best phobias there is.
But it was still awkward.
Thank God I don't have to sit in the congregation very often because it is an eyeopener not only in terms of the sign of peace but the other things that go on, especially in the last few pews.
Can't tell you how many went to Holy Communion and did not return to their pew but escaped as soon as possible. At first I thought all those who were sitting around me must have been raptured and I was left behind!