Because I find your interpretation of your experience deeply self-involved, and I guess, after what I experienced and what my later father experienced (holocaust survivor), and all his family dying in gas ovens, there really isn't much comparison when someone snubbed you in a store.
I was born on the wrong side of every social divide. The Jews called me a shiksa or a goyim or numerous other Yiddish words which are derogatory towards gentiles. Christians called me a bloody Jewess and ostracized me. The Engliish called me a bloody rockspider because I had an Afrikaans mother and spoke English with a terrible accent.
For most of my life I have been bullied, ostracized, had people spit where I stood, taken advantage of, and for a good period of it, I was physically whipped, quite frequently. I have been called a whore and a slut continually (despite having been sexually abstinent for virtually my entire life). I have lived through hell - for no other reason than
1) I had a malicious narcissist for a mother
2. I was born on the wrong side of every social divide.
3. I am austistic (have Asperger's Syndrome) and an audiotry processing disorder.
I have been innocent of malice, done my best, work incredibly hard, but my income from social security is $212 per month. I'm 70 years old, have nothing, and only survive at the moment because my generous patrons contribute towards me.
Forgive me if I think that someone snubbing you in a a bookstore is a big thing. I haven't had people just snubbing me. I've had them purposely walk into me with such force that I fell to the ground. I've had people on the dance floor trip me up purposely. I've been physically assaulted over and over again (twice in the last 18 months) - one by a white man who sexually assaulted me and then when I told the police, his black wife forced him to beat me, and another by a black man who was told a lie by a white woman who hated me for some reason. I suspect because another white woman resented me for not wanting to gossip about other people.
I'm a little tired of hearing all these minor transgressions. I have lived through absolute hell. Two disability counsellors in San Diego told me that people with my level of abuse and disability didn't survive beyond 70.
Again, I just find it irritating that someone gets upset because they experience minor snubs every day. I experienced a helluve lot worse than that.