Interview walk out

Date: 2/27/2019

I got called for an interview. The person who interviewed me dropped 2 thick folders in front of me to answer. There were 2 employees who saw it and snickered and said "If you were accepted here you'll just be made into a personal assistant, not an engineer". I opened the folder and saw a bunch of questions ranging from "what is your name" to "what is your cat's favorite tv show" like wtf. After I answered the questions, the person proceeded for an interview. When i sat down in front of her, she started signing a bunch of papers then called a loaning agency. She said to them that I will be loaning money and I was like "what no". She said to the agency that I already signed papers and again I was like "WHAT". I stood up and walked right out. I realized that what I did was rude so I went back and apologized then proceeded to explain that I was expecting an interview, not some loaning shit.