Cats are known for their independent and sometimes aloof nature, but there are certain things that they absolutely hate. Some common things that cats hate include loud noises, being picked up unexpectedly, and having their routine disrupted. Cats also dislike rough handling, being sprayed with water, and having their territory invaded by other animals. One surprising thing that cats hate is citrus scents, so it's best to avoid using citrus-scented cleaners or air fresheners around your feline friend. Overall, it's important for cat owners to be mindful of their pet's preferences and boundaries in order to keep them happy and comfortable in their home.