Yeah.
There are some who don't appear particularly bright and whose
sole purpose in life appears to be interrupting tutorials with
questions that could be answered on one's own.
Granted, there are the god-like awesome smart ones also.
Reminds me of one of my students in class.....
*****************
Me: Okay, let's discuss question 2.....
Student: Sir, how do we do question 2?
Me: Yes, that's what I'm about to discuss!
*************************
Me: To simplify our analysis, we can try
identifying the zero-force members....
Student: Sir, what are zero-force members?
Me: Yes, I'm getting there!
***************************
Me: ..... so, for that reason, AB is a
zero-force member. Now let's move on.....
Student: Sir, what are the other zero-force
members?
Me: GAAHHH.... let... me..... finish....
talking!!!