 Food is usually eaten during the day unless unavoidable, since there is too much danger of injuring insects in cooking at night.The Jain will not use an open light nor leave a container of liquid uncovered lest a stray insect be destroyed; even with this precaution, liquids are always strained before use.Through the ages Jains have sought to avoid occupations that unavoidably entail injury, and this accounts for the disproportionate number who have entered banking, commerce and other mercantile trades.