There was also an incident in 1986 involving an F27.
If the incident did not involve a gun, the school must take the child back after 10 days.
No one was hurt in the incident involving the 12-year-old.
The first serious incident this year did not in fact involve drugs.
"The incident involved several hundred people," a police spokesman said.
The second, far more serious incident involved the death of a teen-age girl.
A second incident involving a dog occurred on Stage 18.
The fire is the second incident this year involving the private Catholic children's agency.
The police say there have been few incidents involving runners.
Both operators said those incidents involved their first deaths in many years.