My husband and I were out for the weekend last year and stopped at a lovely rural pub. There was a big area out the back for people to eat, etc. There was a large family (possibly two families? Not sure), Mom and Dad and about 6 extrodinarily well behaved kids in ages from about 12 down to arm-babies. So well behaved that my husband and I remarked on it to one another, in fact. Which made what happened all the more hilarious for us and embarrassing for the adults.
One of the adults started a game of I Spy. This went through several rounds, and the older kids were kind enough to let the little ones win, I was impressed. Then…
“I spy with my little eye, something beginning with a P…” The gorgeously well-behaved 4ish little girl piped up with…(Oh, you know this is coming…)
“PENIS!”
Now, I about choked on my food, and couldn’t look hubby in the eye, but it got worse…
The Mom did the right thing, she just said, “Nope, that’s not it, who else has a guess?” But the Dad, trying to be A Good, Reasonable Parent said, “Besides, that’s silly - do you see one of those?”
And the gorgeous, precious 4ish little girl pointed straight at his crotch and said, “I’ve seen one there!” and THEN she pointed at the oldest boy’s crotch (he was about 8ish) and said, “And there, too!”
At which point Mom jumped in and regained control, “Nope, that’s still not it…it rhymes with ‘Rebel’” and another kid got the answer. (Pebble, BTW, there was one of those decorative potted plants with pebbles around the bottom of it.)
And now, I am red in the face, my husband is cough-snorting to keep from totally losing it with laughter (we were the next table over), and the very oldest of the children comes back from the toilet to the table, looks around at Mom and Dad and says, “Are we still playing I Spy?”
A loud, simultaneous…“NO!!!”

I got up and RAN to the bathroom and laughed until I almost couldn’t breath.
To this day, my hubby and I can just randomly look at one another and say, “Penis!” in an earnest voice, and we crack up.
Cheers,
G