Wow, that really sucks. I know I wish I had a lot more money so I could help my family and friends.
But I also learned something, and that is that we all make our choices and live with the consequences, or conquer them. Sometimes it's a mix, but ultimately, it's up to each of us to react any given way. We always have a choice, and we are all infinitely capable. I have no doubt your dad will be able to find a new adventure, maybe even better than the one he's currently struggling with. And by staying positive and reminding him of that, that might just be what it takes to turn the bright idea bulb on. All the best :)