When your 7 1/2 month old is having a tough night (what with the teething and all) so you let her lie on your chest and play with your face/hair while she falls asleep, DO NOT allow her tiny fingers anywhere near your nose! In a flash, one of those adorable digits can (and will) snake it's way up your nostril then scratch it's way down (in that same instant). It will happen so fast. You will screech and cry real tears. There will be bleeding and residual soreness. She will not be sorry.
Giving you the finger will take on a whooooole new meaning
... I was hoping for a chance to add this picture, but this is a terrible price to pay :-P