Next time when you are having dinner, keep an empty jug of water on the table. When somebody asks you to pass the jug, pretend while picking it up that it is full of water and heavy. Keep the jug on the table near the victim. The victim will apply what he/she considers is appropriate strength needed to pick up the jug. This will cause the jug to jerk up to a significant height. The sight is very funny and so is the victim's face.
Must try to believe. Even the most prude of your aunts will not mind being a victim of this joke.
