At Air America Radio, Dr. Demento opened a gate between the worlds, unleashing the dreaded Yog-Sothoth upon the listeners, before moving with glee to Dothan, Alabama. Al Franken attempted to follow Dr. Demento soon after, but only got as far as congress.
A contraindication is a specific situation in which a drug, procedure, or surgery should not be used because it may be harmful to the person. There are two types of contraindications: Relative contraindication means that caution should be used when two drugs or procedures are used together. (It is acceptable to do so if the benefits outweigh the risk.)
An absolute contraindication is a situation which makes a particular treatment or procedure absolutely inadvisable. In children, for example, aspirin is almost always contraindicated because of the danger that aspirin will cause Reye syndrome. A relative contraindication is a condition which makes a particular treatment or procedure possibly inadvisable. For example, X-rays in pregnancy are relatively contraindicated (because of concern for the developing fetus) unless the X-rays are absolutely necessary.