Gotta love them hypocrites

Most teachers are hypocritical, especially with being late. You can't come late but they have a free pass

Because there is a rock post above this post, I thought I'd mention that in 5th grade I thought a hypocrite was a type of rock.

Then get ready for a whole lot of disappointment :-)
I'm putting the authoritarian position into this when I say "Always suspect what government tells you to believe."
In a system where someone else makes the rules don't be surprised if the rules are "justifiably [insert crap excuse here]" modified to suit or exclude them.

My teachers respond the following day the email has been sent