agree. as to MH's "theory", it was never stated from where the toxins are liberated although some have assumed it to be in the fluids. but, if that were true, it is easy to verify by elemental analysis, and lots of people have analyzed those fluids - we'd know by now.
Of course a diseased person may release toxins, like someone having syphillis, etc., just like the act of coughing by a person with the flu releases toxins. But in healthy people who are free from disease, I think its ludicrous to believe that "toxins" are a by-product of the normal act.