AITA for my USB killer frying my friend’s PC after she went through my bag?

AITA for my USB killer frying my friend’s PC after she went through my bag? I (20F) have a USB kill stick that I keep in my backpack. It looks like a regular thumb drive but I put a little devil-face sticker on it so I know what it is. I keep it in my backpack because I know how careless my parents can be, never thought it’d actually get used if I keep it with me. Yesterday I had to dip from campus super fast, asked my friend (21F) to watch my bag for a sec. Didn’t make it back in time, so I texted her “hey can you just take my bag home tonight? I’ll grab it tomorrow” and she said no problem. She gets home, admits she started going through my stuff “out of curiosity,” sees the devil-face USB, assumes it’s my personal drive and decides she’ll “just take a quick look at my files,” and plugs it straight into her PC. PC dies instantly. Mobo and PSU completely fried. Now she’s absolutely pissed at me, saying I’m reckless for even owning something like that and that I should pay for her whole new setup… even though she fully admits she had no business snooping in my bag and plugging in random devices. I feel bad her computer is toast, but also…maybe don’t go through your friend’s stuff and don’t plug in sketchy USBs?? Feels like common sense. So, AITA?