What would be the perfect job for a night owl who doesn't like working with people?
An almost perfect job would be a Night Auditor at a hotel; you dont really deal with any guests at night. I found it perfect for me to study, surf online all night, and get breakfast on my way out too.
Tour guide!  Take twenty people on a walking tour of your city for three hours, charge them each $30, and you take home $600.  Figure that $100 of that will be used for marketing, and you still take home $500.  A good tour guide can bring in $10,000 per month.  It's best if you speak several languages.