Examine the box of cookies
From Create Your Own Story
You pick up the box of cookies and read the label:
"Pepperidge Farm's Freshly Baked Peanut Butter Cookies."
Sounds yummy, you think. So you take a cookie and place it in your mouth, relishing the flavor. But there's one problem: You're allergic to peanuts. You feel your face get all sore and puffy, and suddenly your lips are swollen shut, along with your eyes, ears, and nose. Now you can't spit the cookie out. With your airway closed, you die from loss of oxygen.
Nice going, Sherlock. YOU'RE DEAD!