Oh, I also used to have one of these guys:
http://www.petbugs.com/caresheets/ga...-giganteus.jpg
Giant Vinegaroon
(Mastigoproctus giganteus)
http://www.petbugs.com/caresheets/M-giganteus.html
A buddy from AZ sent it to me. He has them all over his back yard.
It's defense mechanism is to spray a vinegar like acid from the base of the tail as it waves the tail to spray it all over. You can smell the vinegar and it will burn if you have sensitive skin.