I am currently enrolled in a firearm safety class.

I do pretty well I'm the best shot in the class of about 14 guys. Can put together and take apart just about any handgun pistol.

I posted a picture of myself on Facebook holding a shotgun and my finger was within the trigger guard.

So then some random Marine dude comments and says "you should take a firearms training class buddy."

I already am so I really don't know what to say to rebuttal him.

If I say "i already am" then I'm defending or rationalizing if I say "why don't you take me or we can go together" that's gay.

I literally cannot say anything without losing if I say maybe I should, he is just going to be like yeah you should if I just say "okay" he's going to be like yeah cuz you're not really good with guns or something. And if I ignore him I look like an idiot and if I delete the comment I look also like an idiot.

how can I defend myself in this situation what can I say to wreck him?