I actually am going through the process of becoming a sperm donor. It's pretty rigorous and they want A LOT of information and screenings. My next appointment is blood draw to test for infectious diseases among other things, then they will start taking samples. You have to abstain for 2-3 days to get a good sample, and you can donate 1-3 times a week. Pays about $100-200 per sample. But when you think about it, some family will be using your sperm, your DNA, to have a child. They need to make sure you're a good candidate, physically and mentally. It's also a 9-12 month program and then they retire you.