Remember kiddies, when playing the Whack-A-Mole game, these are things to keep in mind:

• Ever play Pull-Out-A-Mole?
• Sticking your face over the hole, may startle the mole, causing it to jump out.
• Mmm... Beer.
• Make sure you kill all moles and bystanders

The real instructions of course are far more innocuous (Please don't put your hand in the hole. Don't put your face over the hole. Don't play while drunk. Don't swing the hammer wildly. ) Brian Ashcraft

Whack-A-Mole [Wiki]