Here is one that is always mentioned and repeated over the years:
w92 1/1 pp. 5-7
“Their Sound Went Out”
There is no escape from the Kingdom preaching. An Italian Catholic used to get annoyed every time Jehovah’s Witnesses called on him. So when his company transferred him to Singapore, he felt that at last he would not be bothered by them. But to his surprise, the Witnesses were there too. So he obtained two fierce dogs to attack the next Witnesses who came. When two Witnesses called at his home, out jumped those dogs. Terrified, the women ran for their lives, going in different directions at a road junction. As one of the dogs caught up with her, one of the Witnesses desperately grabbed two brochures from her bag and shoved them into the dog’s open mouth. At this, it stopped chasing her, turned around, and trotted home.
The following week, the same two Witnesses were making a return visit at a house across the street. The dogs’ owner was in his garden, and, surprisingly, he greeted the women and invited them into his house. He told them that he had never spoken to Jehovah’s Witnesses or read any of their publications. But he had been amazed to find the brochures in the mouth of one of his dogs. That evening he had read the brochures and was really impressed with them. Although he had been a Catholic all his life, he expressed a desire to study the Bible with Jehovah’s Witnesses.
Since the man was being transferred back to Italy, arrangements were made for Jehovah’s Witnesses to study with him there. As he and his wife started to attend meetings, the parish priest angrily confronted them with threats. When someone set fire to their garden, the couple severed all ties with the church. This man now says: “I have already been witnessing to many of my family members because I want to let them know that Jehovah is the only true God.”