Suggest that "Verify" button needed to be add in the Field Calculator dialog box.

[PROBERT68]

I am pretty sure a lot of you GIS Specialist out there probably are frustrated when you write a code in vbscript or python and whenever you hit the OK button and what does it do is to  come out telling you  "There was a failure during processing, check the Geoprocessing Results window for details". Kind of use your time ? I hope you like my idea !