Euro Cylinder Thumbturn Warning

Received a call from a panic stricken father saying his 3yr old son was locked in a bedroom. They had been playing Hide and Seek and the boy went into a bedroom and had locked the door and then couldn't open it. I got there within about 10mins as they were local to me. I managed to pick the lock and free the young boy and re-unite him with the family again. The father was over the moon to see his young son again as any father would be. Very rewarding to know you've helped someone to that extent. The lock in question was a Euro Profile Thumbturn Cylinder which locks on the outside with a key, but on the inside with a turn. Probably worth considering changing these if you have young children.