For final diagnosis, put peanut butter outside suspected area, and keep watch. If gremlins are present, they will make an appearance. Small green creatures, about an inch tall, with big noses and high tittering laughter. Found throughout the world, often in delicate machinery. Usually just a nuisance, they sometimes can be quite a problem, as they have a cruel sense of humor, and enjoy practical jokes.
Eggs usually hatch in about four weeks.
The newly hatched Gremlins leave the nest site immediately, looking for machinery of their own. Average lifespan is about five years, although some in the computers at NASA have been known to live and wreak havoc for decades. A gremlin is a fairly intelligent creature, and can make a good pet if trained properly. Unfortunately, they usually grow up in the wild, and are untrainable as adults. They have an irresistible addiction to peanut butter, and so can sometimes be lured out of household machinery by its scent.