Evolution and T.As

The elusive Teaching Assistant (Tutor, etc) is a cunning creature. The common practice of searching high and low is a labor that yields no fruit, as he craftily remains undiscovered, despite several attempts.
Emails, voice mail and other such handy means of communication so useful when tracking down other ordinary species do not produce results either. The elusive T.A (tutor, etc) remains in hiding. It is also a proven fact that at the times when the T.A (tutor, etc) is needed the most; at the crucial intersection resulting from an unanswered question holding a path that surely will lead to unknown turtuous and horrific death a.k.a an appearance of that question on the next days exam - the elusive T.A (tutor, etc) is nowhere to be seen.
Frantic searches, panicked glances are darted hither thither, but in vain. The elusive T.A (tutor, etc) has once again proven his insidous tact.
Years of T.A (tutor, etc) evolution have culminated to produce a species that is perfection itself. The elusive T.A (tutor, etc) is a connoisseur of concealment, a master of masquerade, a dilettante of disguise. If the evolution that produced the T.A (tutor etc) has any short-coming it is the review session. However, even in this, evolution has formed a counter attack.
T.A conspirators abound.
These are the creatures that come to review sessions with the intention of carelessly using up valuable time. They crowd the coveted front row and ask only the most obvious of questions. It is clear from the T.As' (tutors', etc) exhaustive response of what could have been a two word answer that they are in it together.
However, the time is coming when there shall be a revolution. The many manipulated and vulnerable students seeking an A on the exam are vulnerable no more. Together, they are forming ranks and will strive to seek a better and more suitable environment for the ubiquitous last-minute-question-before-the-exam.
Students of Brown unite!