<human>: Give me the gist of the text in a nutshell

Okay, so here's the deal.

I got a detention for being disrespectful to a teacher during afterschool hours. Basically, they email the notice to my parent's email address. I have to serve tomorrow. I have baseball practice so I have an excuse for getting out of school late, i basically just call my parents when im ready to be picked up, and they don't question me much. I don't know the password to the email address... what should I do? I deleted the email when I went on my mom's phone, but it still shows it in the trashbox. And i didnt have much time to see how to get rid of that because I was being sneaky about it. I could just deal with the detention/punishment like I have been for the majority of my school years. But this time is different because my parents said if I dont get anymore detentions for the rest of this year that they would buy me a gaming computer.
<bot>: How can I get away with getting a detention without my parents knowing -- my parents having seen the email notice yet. If I get away with this I can possibly get a new gaming computer.