Dont’ think you wouldn’t be caught out by these characters. According to PC Ross Blain, they are very clever in terms of what they do. These thefts are often targeted. Best thing is to lock the door and check with the Police.
He emphasised the need for householders to look out for elderly or vulnerable neighbours and notify police if anything untoward is seen. Police would rather check out a false alarm than be faced with a robbery or bogus work incident with the perpetrator long gone.