«Much less frequently.»
«Yes — when did the last occur?»
«About nine months ago.»
«Under what circumstances?»
«I was being worried by certain family matters. It was a question of deciding about some investments, and I was largely responsible.»
«Yes. You were interested last year, I think in some police case?»
«Yes — in the recovery of Lord Attenbury's emerald necklace.»
«That involved some severe mental exercise?»
«I suppose so. But I enjoyed it very much.»
«Yes. Was the exertion of solving the problem attended by any bad results physically?»