<human>: This happened today. I attend high school and as it is a catholic school, we need to wear a uniform daily. Today was an occasion where we could wear pink shirts in order to support anti bullying. I found out that I could wear a pink shirt at the last second before I left, so quickly ran up stairs and threw on my only pink shirt. 
It was great, not being in my uniform shirt for one... Or was it? I was sitting down in my homeroom class when I noticed a drift of air on my arm pit. Oh no. The shirt I'm wearing ended up having a huge whole under my armpit! 
I had to suffer the whole day with my left arm always pushing against my body to cover the whole... I still think people saw though :/

Can you summarize the given text in a few sentences?
<bot>: Got to wear pink shirt to support anti bullying instead of uniform, got to school and realized there's a huge whole under my armpit...