You gotta hand it to Jay Leno; the dude’s got guts. On Tuesday’s installment of The Tonight Show, the late-night host took another swipe at NBC’s poor ratings — a day after he referred to the top execs as “snakes.”

“Did you hear about this? A 28-year-old woman from Serbia has a rare brain condition where she sees everything upside down,” Leno said in Tuesday’s monologue. “The good news? She’s now been given a job at the White House as President Obama’s economic adviser. Isn’t that crazy? It’s unbelievable. She sees everything upside down. In fact, she thinks NBC is at the top of the ratings.”

The yuk is pretty tame — and frankly, kind of stale — in comparison to some of the other digs he and his peers at CBS and ABC have said about their superiors in late night. But it’s the timing of the swipe that is most significant, since only days ago news broke that an NBC topper emailed Leno personally to request that he lighten up on the ratings digs.

On Monday, Leno made this joke at the expense of his employer: “You know the whole legend of St. Patrick, right? St. Patrick drove all the snakes out of Ireland — and then they came to the United States and became NBC executives.”