IsolationWhilst many will make excuses for their substance use, some are usually worried about being judged by those around them. This is especially true if they are using illegal substances. So some addicts try and hide their substance use by finding excuses to be alone. This could be spending large amounts of time in an empty part of the house, like the garage, or it might be finding excuses to leave to house. Sometimes a 5 minute walk to the shops can lead to being absent for hours.
Other signs of isolation are losing interest in hobbies and friends. This may be due to the need to prioritise using over sociable events, or it could be down to fear of being caught.
Many addicts will often change the people they are friends with. To try and justify their own use, they will spend time with other users so that it does not feel wrong. Often, an addict may surround themselves with other addicts so that they can tell themselves that what they do is perfectly normal and this leads to being encouraged to worsen their drug or alcohol use.
Suspicious BehaviourMany addicts will do anything to avoid being caught, whilst making sure that they can continue using. Family and friends will often notice general deceitfulness in an addict, including hiding alcohol or drugs, lying about where they are or what they're doing or refusing to say where they have been.
Often an addict will convince themselves that they are telling the truth and that their behaviour is normal. Therefore, they will be unaware that their behaviour does not seem, when their family and friends find it hard to ignore.
Neglected ResponsibilitiesThis can be at school, at work or at home. An addict will prioritise drugs over their responsibilities in life and will often find it hard to concentrate at school or work. This may lead to frequent absences or missing deadlines.
At home, family responsibilities are often neglected and children may become unfed or ignored. Houses can become dirty due to not being cleaned. In extreme situations, this may lead to physical abuse.