Has Charlie Sheen fallen off the wagon?

TMZ caught Sheen on video freaking out at a security guard because she wouldn’t let him back into the Staples Center after taking a smoke break.

In true Sheen fashion, he used several curse words and then made an attempt to explain to the cameraman what he was trying to get across to her.  

His peculiar language skills seem to be back as well. He told TMZ, “Bad juju.  Clash of the silly."  And then his parting shot ... "Go Thunder!"

Watch the whole incident here.