If someone says, ‘I will not daven for the public with colored clothes’, since that was the custom of heretics, we do not let him daven for the public even in white clothes.

The same is true if someone says, ‘I will not daven for the public with sandals’, since that was the custom of heretics, we do not let him daven for the public even barefoot.

Round tefilin on your head are posul and could be dangerous. Putting tefilin on your forehead or on your palm is the way of heritics.

Covering the parchment of the parshious or putting the tefilin of the hand on top of the shirt are the ways of outsiders.

Megila 4:9

If a person says, ‘good men shall bless you’, that is the way of heretics since bad men can also pray.

People who say, ‘ your mercy is even on a birds nest ’, ‘on your goodness your name should be remembered’, or ‘Modim Modim [we give thanks twice], we silence them.

If someone gives symbolic interpretations to the pesukim in the torah that talk about arayos we silence them.

If someone says the translation of the posuk ‘umezaracha lo sitain lihaavir lamolech’ that you should not impregnate a non-Jewish woman, we silence them. The reason is that the posuk is talking about avoda zara and on that only you are obligated kares.