I once saw PrevT at my pharmacy. I was in line at the pharmacy counter when I felt a tap on my shoulder. Turned around to see PrevT and another T that I knew waiting in line behind me, smiling at me, saying hello. Lol, I became completely discombobulated! Spinning around to say hello, back...spinning back around to step up to the pharmacy counter,...(Now, why did I come in here?).. Spinning back around to politely answer something PrevT had chatted to me...

I totally understand your embarrassment and confusion! I think it would confuse many people.