<human>: I'm 18. I'm working part time at a restaurant while at college. Part time. I'm on minimum wage. It's usually an alright job - but I just want to clarify - PART TIME. 
I get that restaurants sometimes don't know how much staff they need. You can't really guess at how many people can come in, especially since we're in a small town and stuff. I've been here over  a year; I'm used to that (like being called in and going home, or being rota'd on and getting texts saying I won't be needed).
But now they've decided they're now rota'ing us on as on 'standby'. I basically have to wait around, available to go to work, waiting for them to call me in or say they don't need me.
What the fuck is that? I'm PART TIME. A small job for extra money. This job isn't my life - it's an addition to my life. I'm not getting paid for this time of my life I'm basically wasting because I can't make plans because my god damn waitressing job might need me.
I just feel like this is really unfair and stupid. Ugh.

Can you summarize the given text in a few sentences?
<bot>: Part time job has decided that they can now put us on standby all day to wait to be called into work, at no extra wage, and I'm fuming.