My 10 year old son fell off his bike on Friday afternoon, breaking his wrist and scratching up his face pretty badly. Thank G-d he was wearing his helmet- he was treated and released from the ER after a few hours, rather than having to stay overnight for observation.
We just bought him a new helmet about 2 weeks ago. I inspected it today, and saw that it's dented in a very small spot near the front. The helmet should be replaced now, right?