One too many Trekkie conventions?

From the Daily Mail:

William Shatner became one of the all-time nightmare guests on an American TV show after making a series of rude hand gestures at the host.

Red-faced and visibly sweating the 78-year-old Star Trek actor appeared out of sorts on the long-running Tonight Show.

The actor mimed masturbation and flicked the finger at host Conan during the interview.

Maybe we can get him this prosthetic.