Here is reason #9,876,567,345 I don't want pets.
They don't know what to do with kids and will attack them.

At my friend's house today Nadine got swatted by a cat. Who hadn't been de-clawed. I am so grateful she closed her eye, because two of the three puncture marks are right by her eye. One was at the very edge of the bottom of her eye. Poor girl got a black eye from a cat!
She cried for a bit, but she's a tough girl. And then when the other cat appeared, she immediately screeched with joy and crawled after it. No harm no foul.
And yes, there is immense mommy guilt associated with this episode. I should have been right by her while she was in an animal's face, and I should not have allowed my baby to even be in an animal's face. Live and learn.