I wish I had been quick enough to take a picture, and I'm not even entirely sure I saw this, so perhaps someone can tell me if this actually does happen in the game.
My sim was cooking burgers on the new bbq from outdoor living stuff for some guests. She managed to drop one of the burgers on the ground and looked around quickly before picking it up and putting it back on the bbq. It was a blink and you'll miss it moment, but my jaw totally dropped. I've never seen a sim do this before when cooking.
Also, she doesn't have the clumsy trait or anything. She IS evil though.