A teacher’s aide in Maryland masturbated during a Zoom call with eighth-graders — but insists he thought the online lesson had ended.

Marc Schack, an assistant for special education students at Shady Grove Middle School in Gaithersburg, told the Bethesda Magazine Wednesday he was unaware his self-love session had been captured on the virtual call until being interviewed.

“I thought I was logged out when class was over,” Schack told the bimonthly mag. “I had no clue that Zoom was still on. Why would I do that? That’s my job. I had no clue that Zoom was on. I mean, that’s just crazy behavior.”

A 13-second clip — later posted on social media – shows Schack gaze at his screen before standing up, taking a few steps away and beginning to pleasure himself, according to the report.