When you have several wish lists on bike websites...and each pay day you buy pieces off a wishlist, but then add more to the wishlists when you see new shiny things

When friends plan trips to the movies/nights out, you work out where is best to lock your bike up.

When your bike gets stolen, you glare at cyclists cycling past you as you trudge home

Ohh and when you have to take the bus/car somewhere, you also stare jealously at those cycling past you