Was he looking for loose change?

Perhaps he couldn’t find his keys.

Some fans weren't buying those excuses inside San Diego’s Qualcomm Stadium Sunday afternoon when an on-duty security guard appeared to masturbate in front of tens of thousands of Chargers fans.

Video of the incident surfaced on Facebook a short time later, showing an unidentified on-field security employee looking around conspicuously while reaching deep into his right pocket and using his hand to gyrate with intensity.

GRAPHIC: Disturbing video appears to show incident

The Chargers’ cheerleaders – known as the Charger Girls – were mere steps from the alleged sicko.

Team officials called the incident “disturbing” in a statement to the New York Post.

“The Chargers, Elite Security as well as the San Diego Police Department are aware of the disturbing actions of an Elite Security staff member at Sunday’s game,” the statement read.

“We apologize to any fans who may have witnessed the incident. Elite Security is currently investigating the incident and has vowed to take immediate and appropriate action.”

Close to 60,000 fans were in attendance to watch the Oakland Raiders take on the Chargers.

According to TMZ, Elite Security has fired the security guard.