Proof is a drug and alcohol prevention program designed for college campuses.
These clear stickers would be placed in restrooms of bars and restaurants surrounding campuses. 
Men's Restroom Copy: Here's your face where your ass should be,Kudos on your drinking spree.Left the house looking top notch, Now you're smelling piss and crotch.
ProofCampus.com / Proof

Women's Restroom Copy:I'm the toilet, remember me?I saw you before when you came to pee.It's nice to meet you, face to face, And I appreciate your warm embrace.
Wipe your face, there's the tissue.Do you think you have a drinking issue?I hate to be blunt, but it must be said,You look pathetic, but you'd look worse dead.
ProofCampus.com / Proof