[David] Yost didn’t come out as gay until after he left [Mighty Morphin Power Rangers], but there has been talk about his sexual orientation pretty much since he first joined the cast in 1993. So naturally, not wanting to accidentally treat a gay guy like a human being, a lot of the crew decided to just play it safe and be complete jerks to Yost whenever they had the chance.
According to the actor, he had been called a “faggot” on numerous occasions while filming the show, and even had to deal with the producers calling in his co-stars and questioning them about his sexuality. … It eventually got so bad that one day Yost decided he’d had enough and simply walked off set during lunch, never to return. Some may call it unprofessional. Yost called it trying to avoid suicide due to all the anger and emotional abuse. That sadly didn’t help much, because he then spent two years trying to “pray the gay away” before finally suffering a nervous breakdown. (via 4 TV Shows You Loved That Were a Nightmare Behind the Scenes)