Things that make you feel old

I'm talking to a DHL guy and he sees the Mary Marvel wallpaper on my computer. "So, are you into comic books?" he asks, and I say "Yeah."
He says "Me too. I've got a ton of old comic books."
"Oh yeah? Like what?"
"Well, lots of old stuff, but I guess my prize is a Spawn #1."
That was when I decided to switch to FedEx.
For those of you who don't know, Spawn debuted in 1992. And an "old comic book" (at least in my dictionary) is one from before 1970.