You sneak into your best friends bedroom while the're sleeping. Take their eyeglasses from the nightstand, and WHACK OFF the best load of pancake batter you can offer onto both lenses. Quietly depart.
When they put on their glasses in the morning, they realize they are the victim of the ol' Murky Jerky.
Ferdinand realized right away when he couldnt see the alarm clock that he was the victim of a Murky Jerky.