The thread about angels in the ministry reminded me of this. There was a lot of rural territory in the congregation that I attended, which meant a lot of houses with dogs out running loose. Some of these dogs were fairly vicious. There were two separate incidents of sisters getting attacked and bitten. In both cases, they saw the dog, and it appeared to be vicious, but the sisters believed that since they were out in the ministry, doing Jehovah's work, that the angels would protect them.
I know there's nothing funny about being attacked by an animal, but there does seem to be a comical irony in this.