Henderson liked to go for walks and smoke cigars after dinner.
But that was kinda hard, being an astronaut on the space station.
So, he ate his steak paste, strapped himself to the treadmill, and walked for a while.
He wasn’t allowed to light a cigar, but he snuck one out of his coveralls and put it in his mouth unlit.
When he finally got back down to Earth, the first thing he did was have a real steak.
Then he went for a walk, lit his cigar, and coughed until he dropped it.
And lit the neighborhood on fire.