Re: No safe level of anything
"But there does seem to be a section of the public health lobby who seem determined to view any low risk that gives pleasure as unacceptably high."
Yes, that's what was going to say. Many, many things which give pleasure or fun come with a level of risk. Remove all risk and you remove many of the pleasures of life. Not forgetting that people are different and have different ways of achieving pleasure. After all, some people derive please from sitting by a log fire reading poetry (might die in a fire or get cancer from inhaling the fumes) while other choose to hurl themselves down snow covered mountainside with planks attached to their boots.