The same thing happened to me when I heard that the Berlin wall was coming down. I had to pull over. I was so full of hope and now we have Putin.
I was happy for the Berliners once again re-united but I also feared that with the USSR and their Eastern European controlled countries fragmented that this could in the long run make the world less safe and stable. My fears to an extent as yet have not come true to the extent I thought they would but we have seen a small portion of what could happen with Putin and several smaller ex USSR rebel States.