On 02/21/2014 at 00:00, The collaborator "A" was moving a box with a pallet jack when he saw another person (collaborator "B") in your way and to he avoid a collision with the collaborator "B", the Collaborator "A" did a movement to change the direction of the pallet jack when He slammed his thumb of the left hand between the pallet jack and box causing injury in your nail.