I have a similar story but since it wasn't an internship and I had about 5 years experience in far better companies, I reacted with relief that I got out. I only stayed in the company for 2 weeks in which the CEO and his wife, who was the COO, yelled at me multiple times. I was yelled at for not understanding the code base and delivering a feature within 3 days of joining, trying to relax in my chair when they were talking, using their stash of tissue paper cause they didn't bother keeping some in the bathroom for wiping your hands etc. In retrospect I wonder how I even got through those 2 weeks without quitting on the second day. I just stopped showing up and the CEO came to my house, banged on my door to try and get me to delete their crappy code written by a mountain of interns from my personal laptop. I pretended I wasn't home and we later had a call where I deleted it all. I also wasn't paid for the time I worked there. Everyone who wasn't me was pretty much an intern writing awful code because they really didn't know any better
Unlike here I have no qualms about naming and shaming praktice.ai