广东一农民因长期受蟑螂侵扰，自己发明了“灭蟑笔”。这位老兄一不认识记者，二没钱做广告。于是，逼急了，他来到广州的一家大报社，进了编辑部的门，他把带来的一个大信封撕开，一群蟑螂从里面爬出来，这位农民用“灭蟑笔”在蟑螂周围画了一个圆圈，又往圈里丢了一张名片， A farmer in Guangdong due to long-term infestation by cockroaches, he invented the “cockroach pen.” The man did not know a reporter, two no money to advertise. So, desperate, he came to a big newspaper in Guangzhou, into the editorial department’s door, he brought a large envelope tore apart, a group of cockroaches crawled out from inside, the farmer with “cockroaches pen” in Draw a circle around the cockroach, and lost a business card to the circle,