Just in case ~
That is not the worst answer I have ever heard.
I had a Lutheran pastor accuse me of sounding like a Calvinist once, so I asked him to list what TULIP was and we could discuss how my comments sounded Calvinist (they didnt’). He couldn’t even give me “TULIP”, ‘Calvinist’ was just the worst insult he could think of. LOL.
Of course he also hated I was a woman with a degree in Biblical Studies, so...it was more of a personal thing, imo.