In the movie Roman Holiday, there is a scene with Gregory Peck Audrey Hepburn & Eddie Albert.

Gregory doesn't want Audrey to find out he knows she's the runaway princess, because he's a reporter and wants the exclusive story to get his job back. When Eddie enters the scene he sees she's the princess and he starts to mention it so Gregory to divert the attention spills a drink on him. It dribbles down the front of his shirt, yet as he stands up the stain is gone, then when he's about to reveal it again, Gregory kicks over the chair. Again a wet stain is down the front of his shirt, and again it disappears...It reappears and Disappears several times.