How 'bout when
1- You have all kinds of fish catalogs coming in.
2- You know exactly the price difference between online and
your LFS.
3- Your thumb and finger smell like fish food.
4- You can spot a used tank in the trash a block away.
5- You kiss up to the LFS guy just to get a deal.
6- You call home from work and ask hows the tank.
7- You say to yourself "I will never pay that much for that" and
then buy it anyway because it will look cool in your tank.
8- Your have fish themed items in your home.
9- You want the tank(s) if you ever divorced.
10-Your fish have their own space in the freezer for food.