• Take the batteries out of all the remotes in the house. (Hide them well.)
• Organize his workshop, bedroom, or other special place.
• Bribe his faithful dog away from him with a steady diet of Ring Dings.
• Shrink his underwear in the dryer and when he complains, innocently suggest that he's gained a few pounds.
• Stare at his forehead and when he notices, casually ask if there is any history of male pattern baldness on his mother's side.
• "Accidentally" fill the gas tank of his new Porsche with diesel.
• Repeatedly misplace the cordless phone, preferably in a different room each time.
• Repeatedly lose his cellular phone in restaurants around town.
• Loan his precious cellular phone to a pregnant girlfriend who "needs it more than he does."
• Insist upon a lot of "meaningful conversations."
• If you live together, have your mother fly in for a month-long visit unannounced.
• Reverse his contact lenses in their case.
• Snip a small hole in his fishing waders, then follow him with a camera to capture his "sinking" on film.
• Superglue the pages of his Little Black Book together.
• Give the secret stash of dirty magazines that he thinks you don't know about to his younger brother, who he hates.
• Put a gummy worm in his workboots. If he finds the sticky mess at the end of the day, blame it on the cat.
• Slip outside while he is engrossed in his sports and let the air out of one tire. Repeat, never deflating the same tire twice in a row. Try hard not to snicker when he takes the car in for new tires.
• If you really feel adventurous, put a small rock in his hubcap. Stand back and watch the fun. This one is even better if you have kids in the neighborhood to take the blame.
• Along the same lines, remove his gas cap.