TIFU by squinting at two repairmen for a solid 10 seconds while fully naked and then screaming

Throwaway account. I [22f] am a college student who lives alone in a big apartment building near campus. When I came home from classes last night, there was a note under my door saying that there would be repair people coming by between 8:30am-4:00pm to drill a small hole above my door because the apartment was installing fiber wifi. I had planned to be out of the house the whole day for classes, so I sort of immediately forgot about it.

Fast-forward to this morning. I wake up to an email saying that my first thing for the day (meeting with a professor) is gonna be over Zoom, so I decide to take my morning routine a bit slower than usual. I take a shower and then put in noise-cancelling earbuds and listen to music while getting ready. It's also worth noting here that I am pretty severely near-sighted (can't see well far away but can see fine up close) and wasn't wearing my glasses.

I grab clothes from my closet to change into and take off my robe to change. I put my underwear on and go to grab a bra when I see movement out of the corner of my eye. It's then that I look up and, through the ajar door of my bedroom, see that there are two hulking, blurry, back-lit figures standing in my doorway peering into my dark apartment. I figure at first that my eyes are just playing tricks on me, so I stand there squinting for like 10ish seconds before remembering the notice from last night. I then proceed to scream like a banshee and grab a blank to try and cover myself. I'm a pretty chubby person, and my posture is terrible, so the whole moment was less "start of a low-budget porno" and more "Walmart-brand Baba Yaga jumpscare" to be honest. I couldn't see the repair guys' reactions or hear anything, but they just sorta backed away and shut the door.

I take a minute to catch my breath and then proceeeded to feel really bad for just screeching at these poor guys at 8:30am on a Wednesday. So I took out my earbuds, tossed my robe on, and opened the door. I blubbered out an apology and then let them drill the hole in the wall. A few minutes later, after I'd fully gotten dressed, I go down the hall to where they're working on another apartment and apologize again and explain what had happened. They seemed pretty much unfazed by the unholy screaming but felt bad for surprising me (which was really more on me than anything). They swore up and down that they had knocked multiple times, which I don't doubt - I just had been blasting music too loud through my earbuds to hear anything, I guess. They went on with their day, and I'm just trying to fight back total mortification, so I'm not late to my next class 🙃

TL;DR: Two repair guys came to work in my apartment. I didn't hear them knock (noise-cancelling earbuds), couldn't see far away (no glasses on), and was naked (getting dressed). I saw them standing in my doorway out of the corner of my eye and had to squint at them for way too long to figure out what was going on before proceeding to scream like a startled possum.