A security guard at Caesars Palace in Las Vegas is suing Courtenay Semel for allegedly pummeling him while she was in a drunken stupor.

Jaroslaw Jarczok claimed in a lawsuit, filed in LA County Superior Court yesterday, that Semel was "quite intoxicated due to alcohol and/or chemical or other substances" when the alleged offense took place at PURE Nightclub back in August. Having taken enough of Semel's drunken abuse, Jarczok eventually handcuffed her - which is when she got all physical with him.

Now, I have never heard of this woman before and neither had the poor security man; apparently though, Semel thought we should all have her name emblazoned on our hearts. When she allegedly struck Jarczok in the face, she is reported to have said - and I quote: Do you even know who I am. f***king idiot? Google Me, You Dumb F**ck.

Just in case you belong to the same ignoramus club as Jarczok and me, Semel is the daughter of Terry Semel.

Still none the wiser? He was the leading light at Yahoo.

Jarczok wants unspecified damages to compensate for his humiliation.

TMZ