One time, in Minecraft, my house was invaded and taken over by the animals.
I had this really nice house I made, with two floors, a skylight, a hot tub, a greenhouse and a waterslide that led to the underwater guest house made of glass. Then one day, this pig shows up. The door was open, and he just walked on in (even though I told him not to). So I shut the door and was like, "fine. You're just gonna stay here then." So I had a pet pig for a while.
As the days (Minecraft days and real days) went by, I noticed that more and more animals were hanging out around my house. I wondered if they thought I took the pig captive, when really he walked in on his own.
Then one day, I was coming home to get some supplies for the underground lair I was making, and I opened the door to find TONS of animals inside the house. They were everywhere. Mostly cows and sheep. I located the pig and told him I never said he could have a party. Then I spent a good ten minutes pushing all the animals out the door (except the pig, and I didn't kill any of them cuz I play on peaceful and have a strict, "no hurting anyone/anything," rule).
But the next time I went to the house, they were all back! After dealing with this three or four more times, I finally started killing off animals, and shoved my pet pig out the door.
But guess what?
THEY STILL SHOWED UP.
And so I just gave up, and went to live in my underground lair instead.
The moral of this story? Don't trust pigs. Especially square ones.