What room is the argument clinic in?

Hint 1 of 7:

Go the the Corridor.

Hint 2 of 7:

Click on the right side.

Hint 3 of 7:

Look in the 1st window.

Hint 4 of 7:

Watch the Skit about getting-hit-on-the-head lessons.

Hint 5 of 7:

Watch it to the end.

Hint 6 of 7:

Click on window again.