You Can Lead A Man To Seahorses…
Two friends and I (all guys), hanging out one Saturday afternoon, realize that [Other Friend] has a glaring gap in his knowledge, and despite our best attempts to educate him on this gap, he is convinced we’re all tricking him as some kind of prank (which is fair, as we do that to each other a lot).
So, we decide to drive somewhere to prove that we are right and he is wrong. As we’re driving, we realize we’re passing close to the home of another friend in the group, so I call him from the car (I’m in the passenger seat).
Me: “Hey, [Friend], I’m here with [Other Friend] and [Driver Friend], going to the aquarium. Wanna come?”
Friend: “Don’t get me wrong, I think it’s wholesome as f***, but why did a bunch of grown-a** men decide to all go to the aquarium of all places?”
Me: “[Other Friend] doesn’t think seahorses are real.”
Friend: “…What?”
Me: “[Other Friend] doesn’t think seahorses are real. He thinks we’re all pranking him.”
[Other Friend] starts talking loudly from the back seat, so that [Friend] can hear:
Other Friend: “Sure, sea horses, magical sea creatures that look like horses with mermaid tails and just float upright and look majestic as f***. You’re telling me those are real?”
All Of Us: “Yes!”
Other Friend: “Whatever, at least I’m getting a free day out of it.”
Me: “We never said they were magical.”
Other Friend: “You said the males get pregnant.”
Driver Friend: “Technically the fertilized egg gets transplanted into a space on the male where—”
Other Friend: “—Yup. Pregnant. Pregnant male. Magic. Y’all might as well say they’re dragons.”
Me: “Aaaanywho, [Friend], we’re passing your off-ramp in about five minutes; we picking you up?”
Friend: “Just to see [Other Friend]’s face when he sees the seahorses for real? You bet your a** I’m in!”
So, we take a small detour, pick up [Friend], and proceed to the aquarium. When we tell the young woman why we’re there, she thinks it’s hilarious and adorable, and allows us to get in on a family ticket (instead of paying for four full-priced adults), and she tells [Other Friend] to prepare to have his mind blown.
That was the first indicator to him that maybe, just maaaaaybe, we weren’t pranking him after all.
When he finally saw the seahorses for real, the noises coming out of him were enough to get the aquarium employee working that room to ask him to calm down. Then when that guy found out why [Other Friend] was making such noises, he also thought this was adorable and spent the next twenty minutes answering all of [Other Friend]’s questions about seahorses, male pregnancy, and everything.
In fact, the seahorse lesson was so engrossing that by the time we were done, about five kids and their respective parents had joined us to make an impromptu crowd of eager learners about ‘hippocampus hippocampus‘ (the seahorse scientific name I learned that day!).

