You ruined the garlic bread!
There are very few smells that are better than freshly-baked garlic bread. Even the store-bought stuff with artificial butter and garlic powder can smell like heaven to a drunk college student. But one aroma that’ll mask your efforts at making the best garlic bread in the world is burning plastic.
We don’t know whether the person who tried to bake this garlic bread was drunk out of their mind or tired, but perhaps they should stay away from the kitchen from now on. Putting an entire cutting board inside of the oven is just nuts. They would’ve been better off just putting the loaf in the oven as it is.