On the count of three, say "Cheeeese" because Leno's free photo booth [0] is back in action! But this time the pranking goes beyond merely sabotaging people's pictures. In this round, old men are tickled pink, toddlers are taunted, and a dude is told that it's about time to propose...hello, awkward! Pictures may be priceless, but are they worth this kind of trouble?