"Back in January, I was considering what to get you for Christmas and decided to buy $100 of bitcoin for you. But then I remembered you don't like Bitcoin...

...So here's $100. Damn shame, it would have been worth over $200 if I'd known you wanted bitcoin..." 

 Me barging into the family dinner and announcing I'm a multimillionaire 

* whispers, in satoshis * 

 Awesome. We always wanted to make a family holiday to ___enter expensive location.  

 i did it at $15K