I also remember listening to Petey Williams on the art of wrestling and he was telling a story about how they were taping a promo and Scott Steiner ****ed up and ended up saying "I'm gonna bust a load in his ass!" and then he stopped and went off about what they're making him say.
A storyline that had the potential for being in the facepalm hall of fame was the romance angle with Mae Young and Sexual Chocolate, Mark Henry.
But Mark Henry has so much charisma, he was able to pull it off. The guy is so funny and good natured that it was a blast to watch him trying to keep from cracking up during the sketches. You could tell he was genuinely having fun during skits that I think a lot of others (rightfullly so) would have had a bad attitude about doing.
Like any job or walk of life, having a good attitude goes a long way.