Give your food the finger with I Can’t Believe It’s Not Butter! 5 Minute Finger Workout. In the brand’s summer spot, they are parodying classic infomercials with the fictional exercise series: The 5 Minute Finger; a workout specifically designed for your finger’s spraying muscles. The infomercial encourages summer BBQers to get their fingers ready to spray the new cookout product of the summer, I Can’t Believe It’s Not Butter! Spray.