Decompile - Projecting source

 
 
I am writing some code for a client that we would normally have them sign a
license agreement for, but they "need the code NOW" and don't want to get
the lawyers involved which obviously takes much longer than "now".  I can
easily disable the software after a period of time by hardcoding a date into
the program and checking it each time the program is run, but I don't want
them to be able to gain access to the source to see ANYTHING.  They are not
malicious by any means, but I want to protect my butt and still meet their
timelines.  
 
So here is what I am wondering...
 
If I compile my code with zero debugging options in an effort to protect the
source, does somebody have any way whatsoever of viewing that code?
 
Aaron Bartell
http://mowyourlawn.com