Mr. Mechanical: I feel like an idiot. All my life I laughed first on my mother and sister, then on my wife, that they were not able to determine exactly how much filling a cake needed, always remains superfluous, and I have something to feed while baking in the oven. Female eye measurement, irrational use of products, etc. Only yesterday accidentally heard how the wife teaches the daughter - filling do more, dad loves her just so to eat, always with a spoonful ready to serve.