So when I started at my current company, I was the second developer in the company. My job is to handle the embedded development side of our product. The existing code base? Made in fucking China. All of the comments were in Chinese too. They had implemented Huffman compression incorrectly and AES CBC encryption incorrectly as well. It was seriously some of the worst code I've ever seen. I remember one gem I found:

Int header = *(*int) "MGIK";
😫