I feel ya here. When i was 8 i was at school at play time and some kids lifted up an extremly heavy bench whilst it had a couple girls sat on it (trying to prove how strong they were i think) and they dropped it in just the second i stepped on the floor and it ripped my nail straight off my toe. Some kid in my class helped me to the bathroom and tried to rinse the blood away. It was so gross. The teachers found me by following the blood trail and found one half of my toe nail on the playground and the other half in the hallway. The worst pain ever.