Some more to add to the list

(a) people who wear baseball caps back to front.

(b) people who wear outsize baggy shorts that reach below their knees, presumably with the intent to look like a 6ft four year old with matching intellect.

(c) people who omit a belt and wear their waistline below their buttocks in an attempt to look a bit dangerous and hence couldn't outrun the police if they wanted to with their trousers round their ankles and tripping over their untied shoe laces, very cool.