When random old white people speak to me out of the blue and lower their voice in a conspiratorial manner to tell me something incredibly racist, expecting me to agree with their backward beliefs because we have similarly pale skin tones.

Also when random old people start talking to me out of the blue about their medical issues, usually within the first minute of meeting them. I'm sorry to hear you have an enlarged prostate, complete stranger who I will likely never see or speak to ever again, but I'm not a doctor, I'm just a guy standing in this line waiting to pay for this loaf of bread.