A friend of mine hates a prominent anarchist because he never remembers him at social events. I didn't know this was a thing you could hate someone for.
My partner is regularly so annoyed with my inability to remember the names of people that we have whole complex relationships with.
...So now I live in dread of how many times I've accidentally slighted someone for life at a house party or while tabling because my brain taps out at remembering 12 people.