20. Alison Arngrim really had a broken arm in the Bunny episode
Arngrim was a kid, after all. One day, offset, she broke her arm skateboarding. They worked it into the story of the episode called Bunny. In the story, she falls from a horse named Bunny, mandating she get special treatment. In one scene, she screams; a scream that it turned out was real. The safety rope holding her wheelchair had snapped.
19. Michael Landon liked to show off his body
Landon was an athlete growing up, and maintained an active lifestyle. This may have been why he was no shy-guy with his body. He was as cool filming shirtless scenes as he was going commando under his costume. That’s right, no underpants.