<human>: Hi Reddit I am hoping you can help me. I am literally at my wits end, I almost lost my temper  today at my moms Cafe I work at in front of customers. 

I live in a small town in America, only 12 thousand people live here and I love that. My mom owns a Cafe here and I work in there everyday after school. Business is really good and mom is doing really well financially and I am happy for her.  I am a junior in high school.  

I am actually still at the Cafe I just finished locking/cleaning up and I am about to start heading to my friends place. But today mom left me to run the Cafe for a while. She had to go the Middle School for a urgent parent teacher interview with my sister. My sister has been acting up in class alot apparently. 

She can leave me in charge because I can make the entire menu in my sleep. It's become like second nature now 

So I started working at 3:30 pm and at about 4 my friend Savannah came in. She is not the problem she always come in for a Rocky Road Mocha. I spoke to her for a little bit and I am going over to her house any minute to hang out. 

My guy friends came in at around 5 and were just driving me insane. There is this section of the shop where we have bags of coffee beans. You can buy a bag for $20, they were messing up the display and disorganising everything. They interrupted another customer when he was ordering from me. They sat down at a table and they kept yelling over at me to " have fun". They ordered Milkshakes and blueberry muffins and they had no money to pay. So I am taking it out of my pay I am getting

I almost lost it at them, everything in my body was wanting to yell at them and tell them to get the f*** out. I controlled myself the Cafe was packed. What can I do the next time this happens?

Thanks for all your response and taking the time to read. I am heading to my friends Savannah house now, so I may not reply right away. I will when I get to her place

Give me a shortened version of the text
<bot>: My friends came into my work and were pestering me and annoying other customers. How can I handle this situation next time