What's the word to describe this behaviour?

Question

I'm looking for a word to describe one's behaviour that is unnecessarily complicated.

For instance, let's say John, he goes to use the public toilet. Unlike most ordinary people who just uses the toilet, flush, and then leave, he's behaviour is unnecessarily complicated. Every time he goes to the toilet, he would first, remove his outerwear, this includes his jacket, pants, and even his socks and shoes. He would then, wipe the seat with toilet paper and then layer the seat with the toilet paper, and puts all his attire back on afterwards.

What's the word to describe this kind of behaviour?

Answer 1

Overwrought means both “overly complicated” and “agitated or neurotic.” Either sense could apply here.

Answer 2

Pernicketty could mean unnecessarily complicated of cetain behaviours:

placing too much emphasis on trivial or minor details; fussy.
"she's very pernickety about her food"
synonyms:   fussy, difficult to please, difficult, finicky, over-fastidious, fastidious, over-particular, particular, faddish, finical, dainty, punctilious, hair-splitting, exacting, demanding, critical, overcritical; More
informalnitpicking, choosy, picky;
informalfaddy;
informalpersnickety;

I think the example you give would more likely be labelled 'eccentric' as it doesn't conform to OCD behaviour. As @Ryebread points out, OCD is more likely to be associated with fear of germs in which case a sufferer would not remove his shoes in a public toilet - he'd be more likely to avoid public toilets altogether. OCD is however related to many other obsessive bahaviours and not all of them are related to hygiene/germ fears. So, depending on the behaviour and the sufferer, the unnecessarily complicated behaviour could be classed as OCD.

Answer 3

I think you could use the term convoluted here.