What safety precautions should I follow when heating liquids and eggs in the microwave?

Liquids and other foods must never be heated in sealed containers as they are liable to explode, and microwave heating of beverages can result in delayed eruptive boiling, so care must be taken when handling the container. Eggs in their shell and whole hard-boiled eggs should never be heated in the microwave as they may explode, even after microwave heating has ended. The contents of feeding bottles and baby food jars must be stirred or shaken and the temperature checked before consumption to avoid burns. (Page 4-5)