Picard: "...then I found this wooden box with rectangular holes on top of it, and there was nothing inside but mold, so I--"
Riker: "Wait, what?! No, no, that was not a toilet, you imbecile."
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Alternatively:
Riker: "What?! No, Picard, that ero-manga is NOT for children! That's the last time the orphanage will ever take our donations."
Picard: "The kids will thank us someday! Now they know that there aren't only two genders. Oh, and that auto mechanics are hot."