A while ago, I took the cats of my friend. He went on a very long overseas trip for work, and since I'm a nice guy, I agreed to take care of them since he didn't want to give them into a shelter. I've never been overly fond of cats. And, about two or three weeks later, my eyes started to tear almost constantly, I sneezed a lot and now and then I had issues with breathing right. My boyfriend just looked at me and told me that those look like allergic reactions. I went and got tested and it turned out that I am, in fact, allergic to cats and some other rodents like guinea pigs, hamsters and rabbits.
I gave the two cats to another friend, she adores them.
So, yes, if anything, I'd want a dog. A huge one, too. Labrador, German Shepard, something like this.