keshtos fever

Keshto Mukherjee's wife calls the doctor, stating that her husband has taken ill. The doctor asks if she had taken his temperature she replied that she hadn't but would and then call back.
When she hadn't called within a half hour, the doctor called and asked what had happened. She said 'Well, I didn't have a thermometer, so I put a barometer on his chest and it said dry, so I gave him a pint and he went off to work!'