<human>: So I thought I would share my story with you guys. This happened about 2 years ago. I was in the National Guard and this was my very last drill every before getting out. So me and some friends are just chilling in the supply room chatting about football and what not, and I constantly have to fidget with stuff because I'm a child. Anyways the vault with all of the weapons is also in this supply room. And of course I'm playing with the handle and it slides open. This was not my fuck up quite yet. After the handle turns, I decide to see if it is actually open, so I crack it open. Yup, it's open. And I hear a little beeping. Very quietly. So I look at my friends, close the door, and say "that was strange". One of them works in the armory division and he says I should go tell "SSG Supply Guy". I say, nah it's probably fine. The keep insisting so I finally start to walk to the front office to get him. I take a few steps and then EVERY ALARM IN THE ENTIRE INSTALLATION starts going off! So I start sprinting to the front office and get there all out of breath and everyone is staring at me like I just murdered someone. I say, trying to be all calm "So, the vault door is open". SSG Supply Guy jumps over his desk and is sprinting to the vault. He rounds a corner and his feet couldn't keep up and he slams hard, yard sale style, into the metal cage of the supply room. He gets up and gets into the vault to shut the alarms down, and then has to sprint back to the main office to call the police to tell them not to come, who apparently were already on their way. Our First Sergeant was asking what happened and who did it, found out it was me and my last drill ever and said "well you got to go out with a bang!"  Everyone was super cool about it, I didn't get into trouble, and the SSG thanked me as he forgot to spin the dial on the vault, possible saving them from an even bigger mess, outside of drill hours.

Can you summarize the given text in a few sentences?
<bot>: I opened an armory vault at a military armory; alarms went off, police called, I didn't get in trouble.