Since it is a fact that no woman will ever allow me to reproduce, not even for a huge amount of money, I am virtually infertile.

My testicles will never be of any use. They are an unnecessary appendage. Hence I decided to be of use in the research of testicular cancer. I want to give myself a very malignant kind of testicular cancer and then sell histological samples.

My question: Where do I find sources of radiation sufficiently strong to cause cancer?