This topic has pulled me out of "lurk" mode, as this happened at our summer camp several years ago. A 16 year old star scout ignited an aerosol can and it exploded. In addition to being sent home from camp, the scout had to give a presentation on fire safety to the entire troop. I understand he took the assignment seriously and did a very good job.
As Rooster mentioned, the other thing to consider is the past history of the scouts involved. In our case, the scout had some negative history. He had on-going issues with inappropriate language, and was supposedly being watched closely after picking up and shaking a younger, smaller scout and saying something that was felt by the younger scout to be a threat. There were many who felt that he should not have been allowed to return.