Definition: Given a real-life anecdote of a complex ethical situation, generate a suitable title that describes the main event/root cause of the situation. Imagine that the given text is a social media post, and you have to write the title of the post, so the users can decide to read the main text or not.
Input: So I invited my sister to come up to my apartment and stay the weekend because we've drifted apart since she got married and I moved 3 hours away. We were very close growing up but we had grown distant and were barely involved in each others lives at all. She couldn't come in until later that night, around 11:30 PM. I told her how to use the get into the parking garage and use the call box and everything, but for some reason she couldn't figure out the call box so I told her that my boyfriend was coming in in a couple minutes. Now the parking garage is really well lit and I live in a residential and super low crime area, so I knew she was fine standing there a couple of minutes or she could just get back in her car. My bf had just walked to the grocery store and was coming back and I told him just to let her in when he got there.

Then I get a text from her saying, "Can you just let me in? Creepy Muslim Iraqi looking guy walking towards parking garage. Don't wanna get raped or robbed out here" Now I've never known my sister to be racist, so this really threw me off. So I'm like what the fuck. My boyfriend's Indian and has a beard so I figure it was probably him so I text her, "That's probably (my boyfriend), does he have groceries?" and I call him and when he picks up all I hear is him saying "What the fuck are you doing?" and commotion and I hear my sister yelling something back at him. He tells me she pepper sprayed when he walked up to open the door and to bring some water for his eyes. So I grab a bottled water and run to the garage. He said that he had just gotten on the phone with his brother and that he assumed that I had told her he was coming and just kind of mouthed "Hey" at her while he was still on the phone and started to reach for his key and she just whipped out her pepper spray before he said anything else and didn't even ask him who he was or what he was doing. Apparently one of my neighbors had been sitting in his car and had seen it happened and he pretty much backed up exactly what my bf said had happened and was totally confused why she pepper sprayed him.

She was totally unapologetic about it and said that she felt threatened by him and got scared because she felt cornered (the door is in the corner of the garage). He's like 5'6" and skinny and dresses like a hipster. There's nothing physically threatening about him at all and he had a fucking recyclable bag of groceries. I realize she's not use to living in a city and is nervous about it and assumes that people constantly get mugged or whatever, but it made me furious that she would say something so blatantly racist and saying she was going to get "robbed or raped" by him and called him a "creepy Muslim guy". 

I told her that I didn't want her to stay with us after that and I would pay for her a hotel that night if she wanted me to, but I wasn't okay with her saying that or attacking my boyfriend for no reason. After a little while, and when the fucking pepper spray stopped stinging, my bf was trying to diffuse the whole situation and said she could stay and he didn't mean to scare her if he did and he was sorry. But my sister continued to be bitchy about it and wouldn't say she was sorry and said she didn't want to stay because I was siding with him ??? and that it was my boyfriend's fault and she was crying and making it a whole big thing. I called her out in front of him for what she texted me and showed my boyfriend and things kind of blew up between me and her, yelling and everything. She didn't really have an excuse.

So she left and now she will barely respond to me and apparently told my parents I sided with my boyfriend over her even though I told them the story and they basically said it was my boyfriends fault for sneaking up on her. He didn't fucking sneak up on her. It makes no fucking sense and she basically racially profiled and attacked my boyfriend for no reason. I still for some reason feel kind of guilty still for not letting her stay that night and making our relationship more strained but I'm not sure what to do at this point. 

TLDR; Sister was supposed to stay the weekend with me. Ends up pepper-spraying boyfriend in parking garage of our apartment complex when he tried to let her in the building and claims it was because she felt threatened by him, after making racist comment about her being scared he would "rape" or "rob" her because he looked creepy and Muslim. I told her she couldn't stay with us, now she's mad at me and I know I probably further damaged our relationship, but I feel like she basically racially profiled my boyfriend. Should I have been on her side at all or handled it differently? Am I being insensitive at all to her actually being scared? AITA for reacting the way I did?

not letting my sister stay with me after she made a racist comment about my bf and used pepper spray on him