Musings on Bento Boxes, Memory, and 23 year old Gay Grandfathers

So, there's this deal where apparently I don't remember things. Like... conversations I've taken part in with people, i just completely don't recall. Such a situation prompted this conversation on the way to dinner:

Sancho: "Maybe I'll get the bento box..."
Quixote: "We've already done that.
Sancho: "What, really? I don't think so..."
Quixote: "Yes, we did. Remember the spicy tuna rolls?"
Sancho: "...ohhh yeahhhh."
Quixote: "Jesus Christ."
Sancho: "It's really just easier for me to keep my memory in your head at this point."
Quixote: "Haha, yeah.
Sancho: "So...where are my grandchildren?"
Quixote: "Ok... see...you're 23 and gay.
[Pause]
Sancho: "So..no grandchildren?"
Quixote: "No. No goddamn grandchildren!"