His Punisher Comics Books experience
I read this in his real life quotes on his IMDB page.
[on The Punisher] When they announced that I was going to be playing the part, I went to a comic book store in Ventura and there was a guy smoking a cigarette, there was no one in the store, he was sitting outside and he was like "can I help you?" and he didn't even look up. And I said "yeah, man, I'm just looking for some Punisher comics" and he's like "yeah, we don't have much since the announcement"[...] And then he looked up and said "whoa, it's you!" And he was so cool and so helpful and he said "you need to read this, this, and this" and he gave it to me for free! But then I went to New York. I go into a comic book store in Brooklyn. I go in and I get a whole stack and I go up to buy them and [the clerk] looks at me, and he goes "yeah, I know who you are." And I go "okay, cool, man; I just want to buy these comics." He goes "no you don't, you're not taking this, you're not taking this, you're not taking this, you're not taking this; you need to read this, this, this, and this!" And I said "okay, dude" and he's like "do not mess this up!"
Pretty wild!