Anxiety disorder activity?

I'd say he has obsessive/compulsive disorder which he exemplified with making sure his door was locked by locking it & unlocking it 3 times. He's also obsessive about cleanliness/tidiness/order - using a new bar of soap everytime he washes his hands, making sure his clothes were neatly folded & packed. Not too sure about avoiding lines or cracks in the pavement though - don't think thats OCD behaviour. Nor is barging in on his some-times psychiatrist or other social traits he shows. Organising or using his own cutlery at the Diner where Carol works & the cleanliness thing may be a phobia about dirt or germs.