Still deciding what your dream job is? Here are ten unique occupations that you may not have considered. If you’re an early riser, you may consider becoming a knocker-up. Chiefly an occupation from pre-alarm clock, industrial revolution Britain, this job title has nothing to do with the American sense of knock up, meaning “to make someone pregnant.” Knocker-ups went from house to house early in the morning to wake up their clients at pre-specified times. They would carry truncheons, long batons that they would use to rattle the window panes of heavy sleepers to wake them. This job became defunct in the early 1900s when it was replaced by the modern alarm clock.