Dozens Pricked in Middle School

(Harlingen, Texas) According to this report, two 12-year-old students at Memorial Middle School were turned over to police for pricking 15 classmates with Lancet needles, customarily used for testing by diabetics. Yesterday, another report states that four more students were arrested in the pricking prank and the total number of victims now numbers 30. The prickees have been tested for HIV and hepatitis and results are expected by the end of this week. The prickers were sent to the juvenile detention center in San Benito.

Anybody else wonder how this prank was able to grow to involve dozens of sixth-grade students without any teacher, administrator, or parent knowing about it?