A Man Who Should Not Be Teaching Science
Any man who believes in the "young earth" theory:

The defining characteristic of Young Earth creationism is the belief that the Earth is "young", on the order of 6,000 to 10,000 years old, rather than the age of 4.5 billion years as estimated by a variety of scientific methods including radiometric dating. The Young Earth Creationist range of figures is arrived at using the ages given in the genealogies and other dates in the Bible, similar to the process used by Archbishop James Ussher when he dated creation at 4004 BC. YECs believe that all living kinds were specially created by God within a literal 6-day period during the beginning of the universe. Additionally, YECs believe that the Biblical account of Noah's flood is literally true, maintaining that there was a wordwide flood around 2350 BC that destroyed all terrestrial life except that which was saved on Noah's Ark.

For example, take this man, Larry Booher, currently employed as a high school science misleader, uh, teacher, in Roanoke, VA:

Booher's source book, which he distributed at his own expense to classes ranging from 25 to 40 students, included nine chapters with titles such as "In the beginning" and "Evidence for a young Earth."

Luckily, his primitive thinking shouldn't disqualify him outright from working as a dishwasher.