1. I'm afraid I have to answer a call of nature.

2. And when the great beast stopped to answer a call of nature, I felt as if I was sitting astride Mount Pinatubo.

3. I waked early to answer a call of nature.

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4. Suddenly he felt a call of nature.

5. When penguins get a call of nature, they're generally not too fussy where they go.

6. I'm told ... he urgently needed to attend a call of nature only to be ordered to allow visitors first use of a toilet near the control room.

7. Excuse me for a minute — I must pay a call of nature before we leave.

8. Rev Ian Paisley at the roadside where he answered a call of nature.

9. I was probably off the road, behind a bush , answering a call of nature.

10. He signs autographs with a flourish, poses gamely before a barrage of photographers and excuses himself only briefly for a call of nature.