[chj]

> Very poorly chosen example, because "No Japanese and dogs" signs are incredibly common across China

Funny you should mention that. The relation between two people is actually quite friendly except political occasions. Also the Japanese hate is due to the world war 2, not racial. In fact we are one race.

> "洋鬼子" literally means "foreign devil".

'devil' is a strong word. It's more like 'foreign strange men'.