What are the ironic elements in the story "The Black Cat"? Edgar Allan Poe's "The Black Cat"

The very
first line of Poe's "" sets the stage for an ironic tale:

For the most wild yet most homely narrative which I am about to pen, I neither expect
nor solicit belief.

Of course, the juxtaposition of
wild with homely sets up a contrast between what is
said and what is meant, and the declaration that the narrative does not want anyone to believe a
tale he is taking the time and making the effort to tell, is also ironic.  His further
declaration that someone calmer, more logical, and less excitable that he will feel that the
tale is

nothing more than an ordinary succession of very
natural causes and effects

is nothing less than ironic,
indeed, as he indicates his own insanity although he has stated in the third and forth sentences
that he is not mad and that he does not dream--in other words, he is normal, too.

But, perhaps, the most startingly ironic situation in Poe's story is the scene in
which the narrator describes how his wife accompanies him on some household errand...