Salceson is polish specialty sausage made of various meats and jelly. Most popular kind is salceson ozorkowy, made of tongue plus often with blood. In english the closest thing is brawn or headcheese.
An exorcist priest came to a girl tormented by a completely new demon, the demon of vegetarianism. As Olszewski relates in his book, the girl was a bit to blame because she got involved with satanic organizations such as Amnesty International or Greenpeace.
Struggling with the evil dormant in it, Father Olszewski obtained from the demon a clue on how to kill him.
"you will not feed her meat" - the devil was supposed to tell him, boasting about his power.
And here the pigs bred in the parish enter this story. The resolute priest immediately instructed his assistant:
“There was just a freshly made sausage. So I say to the priest who was praying with me: "We have some homemade sausage, bring it and we'll give it to you". The ghosts started screaming: "No, don't you dare bring sausage" and they say to this priest: "Be human, don't go for that sausage." Then it occurred to me that there is something better than sausage and I say: "Bring the brawn". He brought this brawn. I am holding a statue of Our Lady of Guadalupe and I said, "Under the orders of Our Lady, you are to eat this brawn." They began to eat, finally said, "We can't stand it," and left. – the exorcist talks about his valiant struggle.