"I was thinking... mouse."
Dan looked up at her in shock. "Mouse. MOUSE?!" He still couldn't believe what was happening. He didn't even believe she was a witch until her wand started glowing and swirling some wierd blue stuff around. But he if she was going to completely mess up his whole life, he didn't want her to do it by turning him into a wierd mouse-boy.
"A mouse is the best option. Easy for me to do, too." Kat flicked through her spell book, looking for the "Human > Anthro-mouse" page.
"What about a cat?"
"I'm not really a 'cat' fan. Despite the name."
"OK", Dan stood up and smiled as best he could. "Transform me into a mouse."