[Ramrod]

Originally Posted by Xaccers

http://home.global.co.za/~quagga/solpugid.htm

Apparently they're harmless...and not actually spiders, but related

I'd still brick myself if one started following my shadow, especially if it was nearly noon!

When active during the day they avoid the hot patches of ground and run from shadow to shadow even if the shadow is made by a human. When the human moves, the solifugid moves into the shadow. This gives the impression that the animal is chasing the human thus solifugids are commonly called hunting spiders.