layman and designers' lingo

hi! i'm doing an article on the terms that laymen (e.g. karpentero, tubero, etc.) commonly use. do you know some? i'd appreciate if you can share some of your experiences on the field, especially your first exposure to construction and talking to construction people (funny anecdotes?). on the other hand, what terms do designers use that confuse clients (and construction people as well?). like, do clients really know what a water closet is? post comments here, or email me at amillah.rodil@summitmedia.com.ph.thanks!