Ray Bradbury Stories, Volume 1

That money took me to Mexico, to Guanajuato, and the mummies in the catacombs. The experience so wounded and terrified me, I could hardly wait to flee Mexico. I had nightmares about dying and having to remain in the halls of the dead with those propped and wired bodies. In order to purge my terror, instantly, I wrote ‘The Next in Line.’ One of the few times that an experience yielded results almost on the spot.
Enough of Mexico

The next thought was: Those are not my friends, the ones who got me to tear the strips apart and so tear my own life down the middle; those are my enemies.
I went back to collecting Buck Rogers. My life has been happy ever since. For that was the beginning of my writing science fiction. Since then, I have never listened to anyone who criticized my taste in space-travel, sideshows or gorillas. When such occurs, I pack up my dinosaurs and leave the room