At the risk of talking myself out of a job or two, let’s clear something up immediately: Even though it doesn’t apply to me (because as long as I’ve practiced law, I’ve always been a private attorney), I hate the phrase “Public Pretender.”
I hate that people use it; I hate to hear it. It’s pointless, usually slanderous, and in almost all cases — except perhaps in Kings County, California, where it is said contract attorneys will lose their contracts if they upset the prosecutors in their black robes judges – unwarranted.
I’ve never been a public defender. But when people ask, “Are you an attorney, or a public pretender?” my reaction is “a what?! what’s that?” I know exactly what they mean, of course, but I ask it in a tone that (I hope) communicates that I’m wondering if it’s some street performer, maybe a homeless actor or comedian.
And that I’m quite amused that there’s a name for such persons.

When I say, “You’re not” trained for that, I don’t intend to be mean or disrespectful to you. You’re also not trained to be brain surgeons. And, even if you were, operating on your own brain would not be wise. (The legal variation on this is “the attorney who represents himself has a fool for a client.”)