I personally like to go to the restroom to "stretch my legs" at least once during the Public Talk and again during the WT study. Why go during the song and have to wait in line?
Besides, I love to visit in the second school/Library with young moms who's poor little ones can't sit through the mind numbingness of the repetitive talks at the KH.
The Governing Body just doesn't know what they're missing. Haters!