This has probably been done before but it amused me for a short while
The scene shows a young couple, very much in love, sitting at a table in a restaurant. She has her arm across the table and he's lovingly caressing her hand and forearm while they make idle chit chat, smiling laughing etc. The rest of the tables are empty and some staff are standing nearby idly, obviously waiting for this couple to leave so they can close for the night. The man at the table looks at the woman, then just above her head.
Man:
I think it's time we left; have you seen the time?
Woman turns, camera cuts to behind man. Five feet behind the woman is a huge thyme leaf holding a baseball bat in its right hand whilst rhythmically tapping it into the palm of his left hand.