They are cheap and you can cycle them quickly without too much grief until you find the good ones. We (little ISP) get them for a few hours each day after scho

They are cheap and you can cycle them quickly without too much grief until you find the good ones. We (little ISP) get them for a few hours each day after school and put them to work answering phones. They get some work experience and credit under the high school's "industry as shop class" scheme. The better ones get a job for the summer and a raise. If they show the right blend of bordom doing phone support combined with motivation to learn systems stuff we promote them and give them sysadmin projects. Worst case they end up with some clerical work experience in a office environment. Best case they learn some combination of Sysadmin/Netadmin/Coder. Either way it beats working fast food or stocking shelves.