>> Stuck? Get an explorer on the docking bar, select the offending morph in its submorphs and evaluate "self delete”
>
> But, but, that’s *cheating*

No, it's absolutely not.  Control of the environment via code snippets
is as much a part of the IDE as the buttons and lists.  See:

   https://en.wikipedia.org/wiki/Smalltalk#Level_of_access