All I can say is that the Chinese are a truly advanced and yet ancient civilization. The proof? They have a specific idiom describing slapping someone in the face on both sides. Just thought other people might be amused by this idiom. 左右开弓 Trad. 左右開弓 zuǒ yòu kāi gōng lit. to shoot from both sides (idiom) fig. to display ambidexterity to slap with one hand and then the other, in quick succession to use both feet equally (football) Image source: In what might just be the most absurd 'team building' ritual ever, to celebrate its anniversary a Chinese firm forced employees to slap each other. P.S. I'm half Chinese so I can say this.