....when you have pictures of your Koi on your cubicle wall next to the pictures of your kids.
....when you start lieing to your co-workers about how much your latest Koi cost cause you don't want them to think you are crazy.
....when you tell all your friends that they to should build a pond because of how much fun it is when you really only want a place to dump your culls.
....when you start daydreaming about vacationing in Japan to see the sites and the only sites you are interested in all involve Koi.
....when you have more friends with Koi ponds then without.
....when you drive by a natural pond you think about how many Koi you could have in it instead of whether or not it is stocked with bass.
....when the plumbing guy at Home Depot knows you by your first name and you haven't had a "real" plumbing problem in years.
Man I could go on and on with this one.