SIX, read the die.
"Six, English Sheepdog, cool. Like in Disney's Shaggy Dog. Let's get furry," Jeff said eagerly as he keyed in the number 6. But his keyboard stuck, and he entered 66. He hit the enter key, and ran to watch his transformation in the mirror.
His skin started to itch. He scratched behind his ear, as he watched himself start to shrink. "First thing I'm going to do is chase my neighbor's stupid cat Stanley," he said as he noticed that that darn 20 lb cat had been using his leather jacket as a scratching post. He was now eye level with the sleeve which was hanging from the back of the door about 12" off the ground. Hey, he thought, aren't sheepdogs bigger than this?
He struggled to look in the mirror. A tiny rat face stared back at him. He can't weigh more than 10 or 12 lbs--probably less.
"English sheepdog? No way, ay chihuahua, I'm a chihuahua!"
Jeff runs to computer desk. He jumps up to get to the chair, and misses. He jumps three or four times before he catches the edge of the seat, and pulls himself up on to the seat. He stands up to the computer keyboard and looks up at the monitor.
The screen reads "TF Complete: 66: Mexican Hairless Chihuahua".
With his tiny paws, Jeff began to type in configuration to change him back into his former human self. When he was ready to type execute, he heard a loud feline snarl. He turned and saw Stanley on the window sill next to him. His ears were folded back, his claws drawn, and his fangs bared. He was also over 2 times bigger than Jeff was now. The cat lunged at him and landed on the keyboard as Jeff leapt to the ground and ran to find a safe place to hide.
The chronivac whirred. A human hand reached under the bed and pulled Jeff out by the scruff of his neck. His big saucer shaped eyes expanded as he realized he was staring into his own face--well, his own human face. He looked down at the naked body that had formerly been his own.
"Miaow!" the new Jeff said, and laughed. "Well, puppy, I want to thank you for enlightening me. Now, I'm not really a dog man, hehe. So, I think we need to choose a new identity for you."
He carried the chihuahua who had been Jeff back to the chronivac, and holding him securely in his hands began to type.