<human>: So this started out when I am at a meeting and me and some friends are not busy, making jokes, blah blah blah. One of my friends suggests that I call my brother to play a joke on him. It was an inside joke that would take a 3-chapter story to explain well, but it was a certain phrase. So I (stupidly) dial my HOME number and I put down the phone and put it on speaker, and I walk away to handle something for a second. While I'm not within range of the phone, my MOM picks up. So my friend starts talking, asking for my brother. My mom said he's not home, and my friend says okay I'll callback later. My mom asks who's calling. My STUPID friend says his FULL NAME (she knows him), and the polite conversation (my friend is very polite) continues for about three more long minutes. Finally my mom says goodbye and we walk into the other room now, kinda confused and laughing at the same time. Except our team coach is sitting there, arms crossed looking rather annoyed. He chews us out (mostly my friend) for making a "prank call", despite the fact that no prank was ever involved.

I think everything is okay now though.

Condense the text into a few key points
<bot>: I intended to prank my brother, but my mom answered the phone while my friend was talking, and my team coach blamed my friend.