Yeah, in hindsight it is, but if we try to remember history of pretty much every discovery — it all actually required some human experimentation. Everything starts from accidentally noticing something — something unknown and thus potentially risky. I remember how funny it sounded back then in school when somebody was telling about Volta checking if there is electricity by putting wires in his own ears. Because, — yeah, who does that! — right? But back then there was no other way to tell! (Of course voltage must have been really low, but still, I find it quite demonstrative.)

I like to think that this actually is the essence of science: doing apparently stupid things and foolishly risking even your own health because of sheer curiosity.