Ah, the smell of fear and failure.

Training students is an important part of the future in science.  Especially important is imparting the shroud of fear upon the future scientists.  Fear is an important factor, culling out the weak and mentally damaged, while focusing the strong and reminding the price for failure.  There is an art to this, first putting them on guard and self-doubt weakening their critical analysis of statement, increasing the chance of the debilitated students  accepting the statements about grad school which I will present to them.  Fear of the advisor increases the focus of the student during research, and pushes them much longer and harder.  I may even grow a large mustache, because everybody fears a professor with a gigantic, unkempt mustache.  Airhorns at random intervals will keep them off balance, while screaming imprecations about their recent simian ancestry for looking or jumping during the airhorn test, just for fun and giggles.  Psychological manipulation, called "torture' by some, can never start early enough to prepare the student for graduate school, and I will not shirk in my duty to the scientific field.