Do not come to a lecture only to moan about how long it is going to be. The standard is about 2 hours per lecture, you know as soon as that door closes behind you, the lecture will probably go on for a good length of time.
What's the point in coming and moaning all the time about how long it is, how boring the lecture is, or how you're going to wet yourself because you're a fucking idiot and didn't go to a toilet before.
Your fucking whining is actually distracting and quite an insult to the lecturer. Just don't come if you can't handle grown-up shit.