Wow Scheherazade, I was going to do telmatology and add just such a picture, but it didn't feel like my turn. Well done. You too Enmos. Nice rant. So next is...underwater knitting - no wait! Did that already. How about...... UROLGY! No, I'm just taking the piss (pun intended) Here then is Urenology: the study of rust molds: Please Register or Log in to view the hidden image! Now there's a fine and honorable calling for a well intentioned young science person.