When I was in college, I learned this "new-age" sort of trick (actually, it's not a trick, but I cannot think of a better word at the moment) from a good friend who worked in a liquor store next door to my apartment (if his boss had only known how much free booze -- Beefeater's gin, etc. -- that he gave me to help me ward off the effects of that painful love affair..., well). In fact, he taught me this "trick" right there in the store one Friday or Saturday evening when I stopped in to visit. Try it on an unsuspecting friend (or spouse).
Note: I'm pretty sure it doesn't matter if the friend/spouse has been drinking or not.
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Step 1: Get: A.) a bottle or can of alcohol (either beer or hard liquor will do) and B.) some sort of fruit or vegetable (apple, orange, potato, tomato).
Step 2: Have your friend hold the fruit directly against the hollow at the center of her (or his) chest with one hand. At the same time, have her stretch the other arm out sideways, exactly at shoulder level (so that her body is forming half of the letter T).
Step 3: You then put your arm (doesn't matter which arm) on top of your friend's outstretched arm, directly over the wrist area. Tell your friend to try to hold her arm in place while you try to force it down. Don't go crazy trying to force it down. Just apply a steady and relatively strong force (no sudden lunges, or anything like that). The goal isn't really for you to beat your friend at this game. You are simply gauging her strength. Apply this pressure for only two or three seconds.
Step 4: Now have your friend switch the fruit with the bottle of beer or liquor (holding it in the very same spot), and then try to force her arm down again. Be sure to use EXACTLY the same amount of pressure that you used the first time.
Please let me know the results.
P.S. Be sure to use the fruit first, or the results will be less apparent. If you don't trust the results, try it in different ways.