Seriously. Even if you skip Etti-Cat, it's worth it for all the other neat stuff they have there, like old subway cars you can actually walk around inside); there's even a special after-hours event ...

You've probably seen those old Subway Sun etiquette posters from the 1940s, but that wasn't the only etiquette campaign that's run on the city's trains. Meet Etti-Cat, the Transit Authority's odd ...