Closed program tab

This one is probably impossible ...  but I might as well ask.  So, when browsing, I often unthinkingly close a tab.  And, after regretting it, I 'undo closed tab' and all is right with the universe.  So I find I have the same (foolish) instinct in Groupy.  Except, of course, that has closed the entire program.  I don't really expect an 'undo closed program' menu but would it be possible to invoke a 'you are closing the entire program, dummy!' which would give me the chance to back out?  Selectable, of course, since such a thing would drive another type of person crazy.

-----Paul-----