I've literally never seen TA's/Professors competing for help on an exam. Its always begging for students to come in and ask questions because the average in the class is < 50 and no one came.
I think the only time I've ever seen a line during office hours is when after an exam, students would beg for improved grades.
I think the only time I've ever seen a line during office hours is when after an exam, students would beg for improved grades.