There is no evidence this idiocy in any school in the country.

Anytime this silly point has come up directly, every school district has responded with an emphatic “oh hell, no!”.

It’s up to your idiot colleague to find an actual example, not for you to disprove a baseless claim. Feel free to ask him to prove something like “I heard conservatives are licking dog testicles to get high… “ after all, you heard it from a “credible” source…