And to add to UCB’s fine post- Adjuncts who are currently teaching at three different institutions in order to approximate a full time job- even worse. These are often fine teachers and academics who put heart and soul into their classes.
But a professor running out the door to drive to the next college, or juggling the exam schedules of three different places which have overlapping calendars (so the review sessions get cancelled, or students are told “email me with questions”) is a professor who is very severely taxed in terms of time.
Doesn’t matter HOW low the faculty/student ratio is if the professor is just not available.