Just Another Victim of the Ambient Morality wrote: > 1) Passing the wrong object as a parameter to a method. Do you mean object or type here? Checking the type is easy if you need to. > 2) Accidentally creating a new variable. Since I started using NetBeans, I would say this is a non-issue now. That editor is pretty intelligent when it comes to spotting typos in Ruby code. Best regards, Jari Williamsson