Denise Richards and Charlie Sheen Denise Richards and Charlie Sheen

It doesn't sound like it's going to be a very merry Christmas for exes Charlie Sheen and Denise Richards.

Although the former couple have been friendly in recent years following their 2006 divorce, they are reportedly at odds again. Sheen, 48, lashed out against Richards, 42, on Dec. 15 when he tweeted a photo of a baseball bat souvenir from their 2002 wedding chopped up into multiple pieces. "More like a feeble 'K' / The lie is over. / I'm done / Being treated like / A relative with a / One-way ticket," Sheen wrote, along with the hashtag "DuhNeese."

Shocking celebrity breakups

According to TMZ, Sheen is angry at Richards because he believes he was uninvited from accompanying Richards and their two daughters together, Sam and Lola, on their family Christmas trip. However, a source close to Richards told the site that Sheen is still welcome to tag along on the trip, so hopefully things get resolved before Santa Claus comes by packing lots of coal.