It’s been said before, but wow, Old Harry is abysmally bad at the whole not screwing up the timeline thing.
SOON, IN THE NEAR FUTURE/DISTANT PAST:
Crazy Harry: Hey, you’re the Eliminator! My future self told me to be nice to you, right after he told me about comic book stores and that I would some day marry a woman and have physical relations with her! Hey, where are you going? (Donna begs her parents to move out of Westview and is never seen again, and never comes near video games, comics, or anything remotely nerdy again).
I like that Old Harry has to tell Young Harry to be nice to someone. Was he just a raging jerk to everyone he met?