Has it really been close to three years since Charlie Sheen melted down and was fired from Two and a Half Men?

You’d never know, judging by the attention he still pays to the show and to his replacement, Ashton Kutcher.

Sheen Twitter-bashed Kutcher on Sunday and Monday in what started out with a compliment to former costar Jon Cryer.

“hey Jon!!!,” Sheen wrote on Sunday, “u r a GENIUS!!! I ... love and MISS YOU old pal! Q; who’s your lame side-kik? c #NiceTryCanonBoy #CH.” The tweet was accompanied by a picture of Cryer and Kutcher. The hash tags apparently refer to Kutcher’s commercial deal with Nikon and to Charlie Harper, Sheen’s killed-off character on the show.

On Monday, the warlock kept it rolling. “Jon I’m so sorry I insulted your sidekik I meant REALLY lame c,” he said, then added, “hey Ashton sorry bro all good. now quit barfing on my old brilliant show. Remember Punk’d? how duz it feel? c harp.”

Not surprisingly, there was no answer on Twitter from Kutcher.

Sheen has had a new show, Anger Management, for a while now. But Two and a Half Men clearly holds a special place in his heart.