You notice the can of jock itch spray in Richard's locker and grin. You look at the shrew in your hands, and go to the next locker. It belongs to Richard's good buddy Kevin McConnell. You set the mouse-like creature in Kevin's jockstrap, and turn the clock hands back until the mouse shifts to a reptile, an amphibian, a fish, and then into something microscopic. You turn the hands forward slightly until a mushroom like growth appears then back slightly for an early mold/fungus life form. You hope Richard is now a particularly virulent form of jock itch. Only time will tell. You close the locker and retreat to see what happens.
"Richie? Where you at, bro?" Kevin said picking Richard's discarded clothing, and looking around. He shrugged, and proceeded to change himself.
Kevin puts on the jockstrap, and then starts putting on his padding. Before he even puts on the jersey, he's scratching his crotch. You grin. He must be hard at work. You watch Kevin finish dressing and run out to join his teammates on the field.
You wonder whether Richard the Fungus will manage to infect any of the other players before tomorrow's big game. You decide to place a bet on the other team because you don't think your team will win without their star. Then depending on how things go, you may try bringing Richard back up the evolutionary ladder, and see if being jock itch has affected him.