When you feel bad all day cos you missed a 2am squad meeting. ( was threaten with castration by Mrs P after I set the alarm for one once ).
When you get up in the morning and play DF
When you play DF during your lunch break.
When you play DF every evening before tea.
When you play DF every night in the bath.
When you pretend to be asleep in the chair so the wife goes on to bed and you can get another game in.
Mmm think that's me addicted then.