(In a non-personal non-doxing manner, I'm just saying you read like my sister-in-law kinda and she's got 20 years in. Which sounds like a prison term. Um...)
I don't, but I know several teachers, and am married to one. Anecdotes from 3rd-9th grade, all running pretty much like that. I gather some level of this occurs almost daily. Most of them teach in "good" schools, too, so these are the students who are easy to teach.
(for the record, I don't think any of them actually drink at school)
(for the record, I don't think any of them actually drink at school)