Obfuscation

I've already had a ramble explaining the advantage of using scripts (over compiled code) in certain situations, but one of the things that often put people off of them is the fact that the source code is just there for anyone to read, stored in plaintext. What if it contained someone's name, or email address, or (heaven forbid) a password for a database, and fell into the wrong hands!? Obfuscation, whilst not neccessarily the answer, can help...