If someone asks "if you are the TA, how come you are giving a class lecture?", I can safely tell reply "what do you mean? I'm not the TA for this class" -- "so what are you?" -- "um, a vigilante, i guess you might say". "This is cool and all, but isn't this class supposed to be about graphics?" -- "mmmmmmmaybe.".
**edit: Officially there is one slot for every 60 students, and an expectation of at the most 30 students in the graphics class. Thus, after one iteration of the long-division-of-decimal-integers algorithm, I find confirm a total of 0 slots to be allocated with a remainder of 30 unguided students. However, this is a university, not elementary school. As such, a received a recent update regarding my status that made use of not only decimals but fractions and percentages as well!