This is true.I heard lectures end at :55 and the next one starts at :05
This is definitely a riskdont doet you will get detenshun
Lol, I remember in one of my small lectures he'd make a joke about how boring he must be or something.I've found that it depends on the lecturer. I had one last year who would call out to you as you tried to leave and would question you on where you were going and why.
His reasoning was that if you needed to leave early, don't bother going at all.
I stopped going.
In group assignments, never bail on a group without discussing why you are leaving first. Seriously, members who just leave or don't show up are shit.And if your leaving in a group, definitely let him know.