How about the Italian chameleon, the lupini bean. They can be a shock to someone who simply cooks them. The incredible bitterness is awful and is difficult to get out of your mouth. When I was taught to cook them I had to taste one so I would know. They do contain alkaloids that can make one ill. Also, the invasive crop has to be kept away from areas where animals feed. After cooking they have to be throughly rinsed in fresh water then placed in the fridge in salt water that must be ch