Whenever I get stuff from a new source or UG, instead of injecting a full dose, I first inject maybe .25 mg to see if I have an adverse reaction to it. I figure if the stuff weren't clean, I would only be MILDLY infected, and, perhaps my body can fight it off. Am I being crazy? Would there be any difference in the degree of infection if I just injected, say, 1 mg versus .25?