WTF?

I'll admit I'm not up on current pot smoking technology, but has security in today's high schools gotten to the point where you can no longer construct a bong in wood/metal shop? Or is it the fact that these kids were home schooled and therefore unable to access the necessary wood and/or metal-working tools that drove them instead to desecrate a grave and allegedly use the skull of an 11-year-old who died in 1921 to smoke their pot?