That is just so funny.
Reminds me, a while back (early last year) while my mom and I were homeless, well sometimes we'd just go to different stores, look around trying to find something to do with our time, give us some semblance of normancy, well anyway, we went to Toys 'R' Us, my old workplace that I left about 9 years prior. My mom went to the doll section, I went to the action figures, and while I was over there, suddenly spot my old manager, all that time and he was still working there! For a moment I got startled, but then thought, I'm going to have me some fun, so I pass by him, he looks at me and smiles, I can see already that he did not even recognize me, and he said "Hello maam, how are you today." I answered "Fine, thank you." And then he asked, "Is there anything that I can help you with today?", I said, "No. Just looking around." He smiled and replied back, "Okay, if you need anything let me know.", I thanked him, giving him my cutest smile. I was so shocked, had to go tell my mom right away! So I casually walk back down one of the further action figure isles and then hasten over to my mom in the next section. Couldn't wait to tell her. So I tell my mom, "You aren't going to believe this, but remember [name of manager], he still works here, and guess what, he saw me, asked me if I needed anything, he didn't even recognize me, just saw me as just any other girl shopping or something." So she took a peak over to where he was, I told her not to let him see her, she may get recognize, afterall she'd been to my workplace all the time for the years that I worked there, and while I had changed a lot apparently she may not have other than aging more. So she asked me while looking over at him, "Isn't he the one you said that the one time was tripping all over himself when you first went to work as a woman?" Yep. You don't know how good I felt about that encounter, I estatic, because this guy was one of the jerks that mistreated me horribly when I worked there, so badly that I felt that I had to give up and leave, start anew elsewhere, and being as this time, nearly 9 years after I quit that job, not only did he not recognize me, but also saw me as a woman, bet he would have fell all over himself if I had given him a hint of who I was, wanted to just to see him turn into a fool, but I gained enough satisfaction over knowing that he had not the slightest clue.
I was reading to my mom what I typed here just a moment ago, she remembers, still thinks it was funny.