Inspired by this post, here's a memory from my college years. Millionaire Ron Unz had sponsored a ballot initiative to revamp/eliminate bilingual education in California, and his supporters were holding a rally on campus. To advertise, they'd placed flyers on the back of all the seats in Wheeler Auditorium.
"ENGILISH ONLY!!!"
Even if you overlook the three exclamation points, a level of grammatical hysteria usually reserved for naive children's letters to Santa or ISO posters, that's just not going to cut it.
Proposition 227 passed anyway.