Not comics but , back in the 90's I did the east coast national sportcard show and Reggie Jackson was there buying his rookie cards. I had 2 or 3 in my showcase. Sure enough he stopped by my table asked to look at the cards, looked at them and gave them back, said thanks and walked away. His lackey then walks up and proceeds to tell me to sell them to Reggie for basically peanuts because he was Reggie. Put a bad taste in my mouth to this day the way he did it. Needless to say he did not buy any of mine. I heard he did buy a bunch though.