Have you experienced having a vicious pet? We had a pigeon that we named Twinkle who stayed with us for more than 5 years. She was living inside the house and only comes out once in a while to peck on dirt (which she needed for her digestive system). Since she stays inside the house, her toilet is the living room. We had to pick up her poop which she excretes about 5 to 10 times in a day. Her favorite is the sofa fronting the tv so we had to cover that sofa with a blanket. However we tried to teach her toilet manners, she doesn't obey albeit she pecks us with her beak that is painful.
Twinkle is so vicious that even our dogs were afraid of her. Sometimes Barbie would threaten her and Twinkle would get back at Barbie by pecking on her head so Barbie would run away. It's difficult to have a vicious pet like Twinkle because we cannot implement law and order in the house.