Good excuse number one, there was no room at the shelter and they were going to be put down.
Ummmm.... They told me they wanted to go home with me and I couldn't resist. No, that won't work, tried it, however the pig stayed.
Just bring them home and hope he doesn't notice the herd expanded, they will be in quarantine in another room, so he won't know about them til it's to late.
Let us know what you decide to do....