(A ruse is a trick)
Bend your elbow and balance a radish on the top of it. Now, lower your whole hand quickly so the radish drops off your elbow. If you do it fast enough, you will be able to catch the radish in your hand. Now take a nibble.
From: Steve Charney & David Goldbeck, The ABC’s of Fruits and Vegetables & Beyond (Ceres Press)