Doesn't surprise me. About two years ago, I agreed to teach a First Aid course for free to three local Boy Scout troops; twelve Scout leaders signed up.
On the day of the course, only four students showed up - and one of them wasn't even one of the twelve who'd signed up, but had driven down from a town up north just "on spec" to see if there was space available.
9 of the 12 had simply decided they would prefer to sleep in, or do something else with their weekend. Or maybe they just forgot. <img src="images/graemlins/shocked.gif" alt="" />
(The next time I taught a First Aid course for them, their leader had them pay in advance, then re-imbursed them after they completed the course. Strangely enough, we had a full class.) <img src="images/graemlins/wink.gif" alt="" />
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"The mind is not a vessel to be filled but a fire to be kindled."
-Plutarch