I remember
I did this 1 command which i didnt understood properly
But all i can say is it "apt remove" this 1 package

Suddenly i am watching my every distro related package getting purged

And simultaneously my chrome stopped working , i can no longer open nautilus or even a folder
Terminal is dead
Desktop things are changing rapidly
And.. i finally thought oh well i needed to change my flavour anyways xD
That was how i met my first kernal panic