Pure sense of humour(it's all about timing):

On July 20, 1969, as commander of the Apollo 11 lunar module, Neil Armstrong was the first person to set foot on the moon.
His first words after stepping on the moon, that's
"one small step for man, one giant leap for mankind," were televised to earth and heard by millions.

But just before he re-entered the lander, he made the enigmatic remark
"good luck, Mr. Gorsky."

many people at NASA though it was a casual remark concerning some rival soviet cosmonaut.
However, upon checking, there was no Gorsky in either the Russian or American space programs.

Over the years many people questioned Armstrong as to what the "good luck, Mr. Gorsky" statement meant, but Armstrong always just smiled.

On July 5, 1995, in Tampa bay, Florida, while answering questions following a speech, a reporter brought up the 26-year-old question to Armstrong.

This time he finally responded. Mr. Gorsky had died, so Neil Armstrong felt he could answer the question.

In 1938 when he was a kid in a small mid-west town, he was playing baseball with a friend in the backyard.
His friend hit the ball, which landed in his neighbour's yard by the bedroom windows.
His neighbours were Mr. And Mrs. Gorsky.
As he leaned down to pick up the ball, young Armstrong heard Mrs. Gorsky shouting at Mr. Gorsky.
"Sex! You want sex?! You'll get sex when the kid next door walks on the moon!"

One Small Step
I call bulls**t! Ctrl+F "good luck, Mr. Gorsky" "Phrase not found". Nice joke though.

...
One Small Step
I call bulls**t! Ctrl+F "good luck, Mr. Gorsky" "Phrase not found". Nice joke though.

Whats in a name? - Imgur

Might as well delete it claiming irrelevant, a Mario joke can't be funny?

Whats in a name? - Imgur

Might as well delete it claiming irrelevant, a Mario joke can't be funny?

xkcd: Exploits of a Mom