We live on a longish road that's a mix of family houses and mostly student-occupied shared houses. I know our immediate neighbours and a few others, but don't know most of the people on the street. I noticed a couple of days ago that house a little way down from us still has its Christmas tree up, then I looked more closely because I'm nosey and saw that all the decorations were still up including Christmas stockings pinned up on the fireplace. There's no sign of anyone there - no lights on, downstairs curtains never seem to be closed and upstairs curtains never seem to be open.
I'm assuming that it's lived in by a family with children since there were 4 stockings hung up, and it can't be students because they'd be back by now (and I doubt they'd have put up all the decorations in the first place).
DP thinks they're just on a very long holiday, which they probably are, but part of me is worried that something's wrong. I don't know the people who live there so don't feel I can go and knock - the thought of trying not to say 'sorry, I was worried you were all dead' if they answer the door is too embarrassing. So wibu to call 101 or am I worrying about nothing?