What Did Denise Richards Do To Piss Off Charlie Sheen And Trigger Twitter Attack?

Charlie Sheen and Denise Richards are on the spotlight again after the former "Two and a Half Men" actor reportedly attacked the former Bond girl in a series of tweets on Father's Day.

"Open letter to the media," Charlie Sheen wrote in a series of tweets that have been deleted but were quoted by People Magazine. "Denise Richards is a shake down piece of s--- doosh phace & worse mom alive. A despicable charlatan who sux ISIs ass."

Daily Mail also quoted some of Charlie Sheen's tweets including calling Denise Richards a "heretic washed up piglet shame pile," a "leaky and malaria riddle puddle of s--- stink decay," and the "worst mom alive."

According to Charlie Sheen's press agent Jeff Ballard, the actor was reportedly angered when Denise Richards and their children, Sam, 11 and Lola, 10, allegedly refused to spend the day with him at a Mexican resort.

"Charlie was upset and chose to express his displeasure through his Twitter rant," Ballard reportedly told People. "That trip had been planned for almost three weeks. Charlie invited Denise and their two girls, but for whatever reason Denise chose not to go. For her to claim he only realized it was Father's Day on Sunday just isn't true. This trip had been planned for weeks."

E! Online noted that Denise Richards seem to take the high road amid the issue. Responding to Charlie's posts, the actress twitted: "Happy Dad's Day! @CharlieSheen have a great trip in Mexico. Kids were disappointed u weren't here for it-Hey we'll celebrate when u r back!"

The actress also reportedly re-tweeted a quote from her friend Leeza Gibbons, saying: "Negative people have a problem for every solution. Ignore them if you can," adding the caption: "Yup ain't that the truth."

A day after the tweets were posted, Denise Richards was reportedly spotted with her two girls shopping in Malibu Country Mart, appearing to be unfazed by Charlie Sheen's name calling on Twitter.