Chicago pet store or strip club -- can you tell?

1. Collar and Leash
2. Doggpound
3. Puppy Lovers
4. Pete's Petland
5. Birds and Beasts
6. Ruff N' Stuff
7. Doggy Style
8. Off the Leash
9. Ruff Haus
10. Furry Beastro
11. Cat Calls
12. Lucky Horseshoe
13. Heavy Petting
14. Tails in the City
15. Commercial Leather Products
16. Chicago Eagle
17. Bow Wow Lounge

Pet stores: 1, 3, 4, 5, 6, 8, 9, 10, 11, 14, 15, 17
Strip clubs: 2, 12, 16
Neither, as of this writing: 7, 13