Prove it or dont talk to me again.
First off, unlike you, I don't have the mental acuity of a pygmy. As seems the norm for you, you are rather brazen about issuing challenges to others, but acquiesce when the onus is on you to prove yourself. Based on that, I'd say you've forfeited the right to challenge anyone.
Your assertion is that I must have a "shitty" physique. Based upon what, exactly? Precisely, what relevance would my level of development have on the debate over the efficacy of drugs, being that I don't use them? If you knew me, you'd know that if I find a challenge interesting, I will be more than willing to take it on. However, why would it be of interest to me, or anyone else to prove themselves to you, of all people? Who are you, but a self professed "attention whore"? And the determination of whether or not I have a good physique should be adjudicated by whom, you? Good physique in what context? Competing? That is not my aim. Even if you were to personally attest that I do indeed have a good physique, what would affirmation from you matter? If it were coming from someone notable in the industry, a person may deem it noteworthy, but from you? Why would I care?
Sorry Ace, I'm not some unwitting pawn that needs to go out of my way to prove myself to some nobody. I'm a little too intelligent and secure for that. You're little challenge simply isn't interesting enough. But feel free too keep sweetening the pot if you wish. Maybe I'll find it interesting enough at some point.