Is the pig leading the pony into the house?
actually if we leave the door open the pigs come in, not at my invitation however...and many a time we have found them sleeping in the dogs beds in the porch. the gos have huge characters...completely different to the tammies, who go up to the ponies and just speak to them! not in the same league as untying the pony and absconding! Out of 20 ponies, only 1 cannot tolerate pigs.