One day Reid walked into the office late and no one was there. Frowning, he tried to use his superior IQ to figure out where his team might have gone. 'Hmm,' he thought to himself. 'Maybe they got an urgent call and had to leave for a case without me.' Then he heard a muffled cry coming from the closet. 'If y=mx+b and pi is 3.14, than that is a distressed cry for help.' Thus, Reid approached the closet and flung open the door.

"I'm Dr. Reid from the FBI... well, actually it's the BAU, the Behavioral Analysis U-" But before Reid could finish his sentence, he was cut off.

"Mmmmm!" the victim said, brandishing a water gun.

Reid was analyzing whether the person before him was the unsub or the victim when he was suddenly squirted with a generous amount of body gel.

"Raspberry passion fruit," he observed. "I guess this means you're fruity as a nut cake."

The victim/unsub ripped the tape from his own mouth and screamed, "I was having some fun till a group of people came in here and I had to hide in the closet. They were talking about some serial killer who murders his victims via milk and cookies."

With dawning apprehension, Reid glanced over at the center table. There lay a plate of homemade chocolate chip goodness and a glass of two percent milk, which was the only kind of milk Reid drank. 'The killer must know me personally,' Reid presumed. No sooner had this thought occurred when Elle slipped out from behind the office door, dressed in sexy lingerie and holding a heart shaped paddle with holes in the middle.

"You know, Reid, you should really knock first."

Reid looked at the object in his colleague's hand in confusion.

"I don't think that's a very effective fly swatter," he pointed out. "There are holes in the middle. And I think you also forget to get dressed."

Being the genius he was and because the circumference of a circle is pi r squared, it didn't take long for him to put two and two together.

"Ooooooh! You were using your femininity to remove the unsub from the closet and put him in a compromising position."

Elle rolled her eyes. "Why don't you have some milk and cookies, Reid?" she suggested. "You've been looking rather skinny lately."

Reid was horrified.

"Elle, you're the unsub?!" His prepubescent voice shook with betrayal.

"No, silly willy, I'm Gideon. This is my Halloween costume; do you like it? I got a bikini wax and a wig and Elle's underwear. How do I look?

Reid tried to suppress the growing lump in his pants.

"Then who's in the closet?" he asked.

"Well," Gideon said, looking down at Reid's crotch. "You no longer are."

The man in the closet came out and said, "I'm Elle dressed as a serial killer who murders his victims via milk and cookies. Happy Halloween, buddy!"

Gideon grabbed a tutu from his cleavage and said, "Come on Reid, let's get you dressed up."

"And for god's sake, have some milk and cookies!" screamed Elle.