<human>: Give me the gist of the text in a nutshell

(xpost from askreddit)

First of all, the question is directed towards professors and others with personal experience on the matter. I'm not sure which would be the best sub to post this to, so I'm posting it here.

As an undergrad studying in Canada, I don't have good attendance record in every class I'm enrolled in, mostly due to the fact that I have extremely poor listening skills, and lecture that don't involve heavy note-are of little benefit to me, and so I tend to skip those and spend the time reading textbooks instead. That has been going on for a while now, and the thought struck me that I might have been inadvertently rude. Of course, I wouldn't expect instructors to be happy about students skipping their lectures, but I wouldn't have expected most people to be personally offended by this sort of behaviour either.
<bot>: Is it plausible (or demonstrably true based on personal experience) that some professors would be more than peeved about students not attending their lectures?