“what’s with this dog motif?”

Jay: That first time that I swore there, that's the first time we bleep it, and I remember ... we bleeped it because I really hated the way I sounded when I said "fuck." Matt: And that's the only reason that we started bleeping Jay swearing. Jay: Because I said this really nasty, really gross "fuck," and I was like, "This is awful for my character to do." Matt: I think you were thinking, "It's awful for my mother!" Jay's mother's— Jay: You know, I probably did say that. I don't want my mom to hear me swearing up a storm like that.

("The Beginning" DVD Commentary)

Matt: That one kid [Young Jay's actor] was a little worried about what his mom would think, 'cause she really had a problem with swearing, but Erik [Young Matt's actor] was just like, "Yeah, what should I fucking say?"