First of all, I would never be able to get 1 million BTC. If I had that amount, I would own 1/15 of all the BTC available and could control the market myself.
I would be so mad because you would have become rich if you still had that many Bitcoin. But there is not ,much that you can do and getting mad over it is also not going to help much.
I would be mad first but after a while I would just go on with my live.