This has happened twice to our household on Hindmans Road in the afternoon 20th of January and the 13th of February. A male matching the description has rattled our letterbox twice and looked through it and he stayed there for a while just looking through. This has been reported to the police. Personally I feel this is a tatic to gauge whether someone is actually in, to possibly burgle the premises, or from observing the target locations that have been selected by this perp, he seems to be persistant and focusing on female households, so perhaps maybe some vigilence should be called for if you are a female living alone, in case his motives are more sinister and some protection arranged for yourselves.