Some paper, probably.
You appear to be in a situation.
Pros:
> After brief inspection it becomes clear the paper was sticked to the door using cornstarch-based glue.
It means that, on average, it must contain 1/10 of a calorie. It can be salvaged by licking the door.
> This is nutrients. For free.
And people still say all good things in life cost money.
Cons:
> Everything else the paper implies.
> Go get your stuff.