Remembering rain, relatively speaking

It's been a wettish few months in Beijing but as Einstein said, it's all relative.

He also had a chat-up line to impress women at parties. "You know," he would say, "the world started with a big bang."

But I digress. The World Trade Organization, under paragraph 46, sub-section 23, clause 4, will soon classify rain that does not cause excess flooding and lasts for less than 36 continuous hours, taking a five-hour break before resuming, as an Irish export.