Kiwi Farms

A Sikh gentleman recently got ignorant with me and my coworkers at work. He's an Indian-American, speaks English like a native, and, while culturally a Sikh, didn't seem to be practicing the faith strictly (no hair wrap, dagger, or comb, short hair, western dress, and is a pathological liar engaging in all kinds of carnal sin).

While I was waiting for the police to come remove him, I tried to come up with something rude and over-the-top inappropriate I could say to piss him off further. Nothing came to mind.

If he was just a plain Indian, I could've suggested that Pakistanis were better than him because Pakistanis don't shit on the sidewalk when they finish raping their female family members (re: goats and livestock), but that wasn't specific enough to do it. This guy would claim to be Indian right up until he could claim to be Sikh. Since the owners of the business I work at are Indian, I was thinking of making the claim that they were real Indians as opposed to this guru worshiping apostate. But that doesn't sound like it has any real bite to it,

So what could I say in the future to make a person of Sikh persuasion angry? Please make your suggestions as crude, stereotypically racist, and dehumanizing as possible. Thanks.