You are desperate for money and see an ad online for paid medical experiments. You show up at a creepy location and I'm there to check you in. As you start having second thoughts, I put a cloth over your mouth and knock you out...You wake up in a cage and find out that I've genetically modified you so now the only nutrients you can accept are from my waste. If you try to eat regular food, you will throw it up. Of course, you will struggle, but soon you will be starving and begging to eat my waste.