If 'heartache' sounds exaggerated then surely you have never gone to your garden one rare morning in June to find that the frost, without any perceptible motive, any hope of personal gain, has quietly killed your strawberry blossoms, tomatoes, lima and green beans, corn, squash, cucumbers. A brilliant sun is now smiling at this disaster with an insenstive cheerfulness as out of place as a funny story would be if someone you loved had just died.