《笑林广记·术业部》
有个剃头匠为人掏耳朵，掏右耳朵时，那人喊痛。剃头匠问他： 左耳还掏吗？ 
一待诏为人看耳，其人痛极。问曰： 左耳还取否？ 
A barber was cleaning a customer's ears. When he got to the right ear, the customer cried out in pain. The barber asked: Do you still want your left ear cleaned?