Have you ever run into a stranger or had an encounter where you realized someone else had the same coping mechanism as you (SI, in my case), and in that flash, connected some way?
Last night I was at the store picking up a few items -- Mederma and band-aids being two items. In the band-aid aisle I had to stop and look because they had moved stuff around. They had gotten rid of the generic large band-aids too. Another woman was there looking. I noticed she had razor blades in her hand and also picked up a box of large sized band-aids. Our eyes caught and she knew that I knew - and I noticed her looking at my purchases and I knew that she knew. Our eyes seemed to convey that slightly embarrassed, slightly glad to know I'm not the only one - message. That was the end of our encounter but when I left I felt like I knew her.