[Pharo-project] How to execute code before and after a package is load?

It need to turn off system notifications for TestCase while gofer updates SUnit. One way I see would be to execute some code snippet before and after loading. However the Script button in Monticello seems to be broken. I cannot add scripts to the package. What can I do? So the current way to load akuhn SUnit is [SystemChangeNotifier uniqueInstance noMoreNotificationsFor: TestCase. Gofer it displabePackageCache; squeaksource: 'akuhn'; package: 'SUnit'; package: 'SUnitGUI'; load ] ensure: [ TestCase initialize ]. which is well ... quite ugly for a Gofer script. --AA