On Sun, 27 Sep 2009 10:03:26 +0000 (UTC), Andrew Gabriel wrote:

A couple of tiny slugs appeared inside the area, presumably sleeping
inside the fence when it was positioned.

I wonder if they where small enough to crawl fully up onto the PVC
then across the capping without touching "ground" at the same time? I
guess their slim trail would be conductive enough assuming it was
contiguious.

--
Cheers
Dave.