Oh, you are right about the double quotes not making a difference.

As far as it being a bug or not, that is left up to you, all I'm saying is that is the way it works. There are alot of complicated interactions in the predefined subs in the Tk::Text module, that break expected behavior when changing or overriding them. I'm sure that if you redine 'end', that somwhere it will break some other method. File a bug report if you want.