Article continues below advertisementDenise Richards opened up about her past in a jaw-dropping revelation during the second episode of Charlie Sheen's new Netflix documentary, aka Charlie Sheen. The actress recalled making "white trash" sandwiches for her ex-husband's "hookers" during one of his infamous drug-fueled benders.Richards recalled being summoned to check on Sheen after he went missing for two days while filming Two and a Half Men. "They would call me all the f------- time to go there because I can't get fired. I was your ex-wife, I was already fired," she said.