1. Sex is (usually) loud, and looks violent even if it's not. To a dog it's intriguing and sometimes worth attacking. Having a dog fly onto the bed in the middle of it is at best annoying, at worst traumatizing.
2. Many dog owners sleep with their dogs. This may look cute in the pictures they text you, but it's not so cute when a snoring and drooling dog is passed out on your thigh and you can't move and your beginning to overheat and your allergies are just kicking in and … you get the point.
3. Be prepared to do all the trekking if you want sleepovers. Unless your new lover lives with caring and responsible roommates, chances are he or she won't leave the dog alone overnight. So if you're looking for more than a quickie, you'll need to spend your nights either at theirs, or alone.
4. No impromptu weekend getaways. Reservations for the pup at an acceptable boarding place need to be made, and you'll need to count for a bigger budget with the price of the kennel.
5. Your stuff may get destroyed at some point. One relationship ended when a dog chewed through a woman's favorite sex toy... (d**do).
6. No more lazy mornings in bed. The dog needs to poop, pee, run, eat, and play, first thing in the morning. Instead of breakfast in bed, your more likely to be trudging through mud pits in the dog park.
7. The dog park isn't really a romantic place for a date. A few days in the year it's nice, but the rest of the time it's either too hot or too cold, smells bad, and is littered with feces.
8. You probably won't come first. In this new climate of treating our pets like children, if the dog was in your partner's life before you, it will probably always be number one.
9. Then there's the jealousy thing. This might kick in when your date proposes to go dutch at dinner, then stops by the pet store and buys all sorts of (probably overpriced) toys and treats for his/her furry friend.
10. Let's say your relationship blossoms like weeds in the dog park. You will find yourself moving in with the dog, which brings me to the last point: unexpected dog ownership. This is a good thing only if you've been wanting a dog — this specific dog — anyway.