My cats steal food from my plate all the time. Edgar, who is a big male tom, loves fried rice. If I blink slowly or leave the table for any reason...
The first time it happened I threw out the plate. The second time, I tried to trim the edges of where he ate.
After about the fourth or fifth time, I gave up. Sometimes we have a fight over who gets the chicken.
My daughter’s chihuahua is getting braver by the day... he will stick his face in my plate while I am eating now. He isn’t afraid of much.