<human>: Can you succinctly summarize the text in 1-3 sentences?

TIFU, big time. I live in the United Kingdom and the education system is very different to other parts of the world, so what I refer to as 'College', it is very different what an American person would refer to 'College'. 

After waking up late I arrive to college late, as usual, but this time she has a moan about it, "If I was your boss I would have sacked you by now...blah blah blah.....And if you was a runner for the BBC they would have done it too...". I take it all on the chin, to be perfectly honest, I deserved that.

A few hours later, the students come back from lunch on time, but wait, so where is my teacher you may ask? She is late the hypocrite. She bursts into class to carry on the lesson, and then there is me, a big smug look on my face staring at her. I think I'm smart and I want to be the joker of the class so I say "Did you know, if I was your boss you would have been sacked by now!", so to make things worse, no one thought this comment was funny. "Well I wouldn't have been late but I had to speak to a Doctor all of lunchtime because my mum has been rushed to A&E" she dismally replied. I look behind me towards the my classmates, No.one.is.laughing. I just said sorry quickly and stared towards the floor with my mouth shut.
<bot>: Teacher teaches me a lesson about being late. I try to get petty revenge but turns out I nearly make the women in her menopause cry.