REX.W takes precedence over the operand-size 66H prefix to toggle to a full bathtub. It will mix antifreeze into your fish tank. It will replace your shampoo with Nair and your Nair with Rogaine, all while dating your current boy/girlfriend behind your back and billing their hotel rendezvous to your Visa card. It will leave the hairdryer plugged in dangerously close to your computer. It will demagnetize the strips on all your credit cards, reprogram your ATM access code, screw up the tracking on your VCR and use subspace field harmonics to scratch any CDs you try to entice him away. If you are into pain, get the