For the last six years, Mark has been addicted to his 15 inflatable pool toys.
Riley, a 25-year-old woman, loves the feeling of dressing like a baby.
29-year-old Michelle has been addicted to drinking blood for 15 years.
Evan can't resist cleaning his friends shower drains in search for slimy hair.
Tamara can't live without the comfort of her pillow.
Casie copes with her husband's death by carrying his urn and eating his ashes.
Catch the season finale, Wed., Feb. 16
Lori sleeps with her blow dryer.
Jazz considers her 19 feet of fingernails to be her most prized possession.
Teresa eats about two pounds of rocks each day with no plans of stopping.
Danielle spends over $350 a month to satisfy her vapor rub addiction.
34-year-old Scott is obsessed with picking up dead animals from the road.
Tom spends eight hours a day, seven days a week, riding his bike.
Heather goes to the hardware store to feed her addiction.
Download the TV Guide app for iPhone, iPad and Android!