From: Robert Klemme [mailto:shortcutter / googlemail.com] :

# class Object
#    def debug
#      md = caller[0].match /\A(.+):(\d+):/ || [nil, "unknown", "unknown"]
#      puts "FILE: #{md[1]}  LINE: #{md[2]}, ID: #{object_id}, OBJECT:  #{inspect}"
#    end
# end

robert, as always, thanks for the tip.
kind regards -botp