An interesting thought, but if you don't use a gift on something that can change your life, then it is just a waste of time. I suggest you if you do someday get 10 BTC for free, then you can use 9 BTC for things that can fold the duplicate with the risk fairly low for example play market BTC/other currencies, make investments to a site that is already trusted. and the rest you can use as your heart.
Saving is another option because with saving money you are not losing any money and that can be perfect for you.
The halving can be nice for the people who is using Bitcoin.
Majority of people are holding their coins only because of halving and I will do the same if someone gives me 10 btc in recent times.