The average anti-Israel protester may be brighter than a typical cockroach. But there isn't a huge amount of evidence to support that. They have, however been conditioned to claim that everyone they don't like is either a "racist" or a "bully" or a some other combination of buzzwords whose meaning they don't fully understand.
Professor Yaron Raviv, an Israeli citizen who teaches Economic at the college, complained to campus security and the anti-Israel protesters were compelled to cease blocking the entry to the dining hall.
According to pro-Palestinian website Electronic Intifada, One of the protesters, Najib Hamideh, acted as if he had the authority to demand people's identity and asked the professor to identify himself and his reason for being at the college where he teachers.
Electronic Intifada reports, the professor then responded, “Fuck off, you cockroach.”