College classmate, extremely bright. Could add long columns of 3-digit numbers in his head faster than you could do it on a calculator. Got a job at a bank processing checks and won the Employee of the Month award for accuracy 8 times in a row until they stopped giving it out as no one else was ever close.
Fell in love with a crazy pillpopper and they got married. No kids, probably because they spent all their time smoking pot and taking pills. Lost his job for missing too much work, and they lived in a dumpy rental paid for by her father.
Developed agoraphobia and a mild paranoia. Got a few low-level jobs but couldn't keep them because "people were harassing me" which meant someone told him what to do. It wasn't that he felt he was always right, it was that if someone told him what to do he took that as a personal attack.
Got divorced, got on welfare. Spent every day either taking the bus to Walmart to buy stuff or sitting in his apartment smoking pot and taking a boatload of brain-altering pills prescribed to him by his welfare doctor to cure his "anxiety". Figured out how to fake migraines in order to get narcotic pain pills. He could only get 40 a month, and when a refill was due it would last him a week maybe.
Got turned down for disability, found a lawyer who would appeal his case for 30% of the back benefits. Three years later, wins. Asks me if I would help him work out a plan for the money so he doesn't waste it on drugs, said he'd call me a couple weeks before the check arrived. Wants to work the numbers to see if he can get a decent apartment not in the projects, I assure him that with his disability check he can definitely do that in the small low cost of living town he's in.
Couple months later, calls me and says no need to come over, he got the check ($30K) and it's all gone. Gone in 6 weeks, all spent on crack. As he explains this to me, he mentions that a week after he thought it was all gone, he found $200 in the sofa cushion, and promptly spent that on crack too. But with no money, he doesn't do crack - he's too timid to commit crime to get drugs. He's content with his government-paid prescription meds.
Many years later, still living in a Section 8 apartment in the projects and weighs about 350 pounds due to a diet of snack foods and soda.