I have an excuse for that, it's my 'survival instincts' kicking in.
I remember that some scientists investigated why this happens, and apparently it's a defence mechanism, your brain treats crossing the threshold as if you are entering some form of 'danger zone' so it puts all it's effort into paying attention to your new surroundings.
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You know you are getting old when sentences start with:
Originally Posted by Duppy
'When I was a ...'
Such as when I pass my childhood home, and go 'when I was a lad, that housing estate was all fields, with horses in....,' or 'when I was a lad, my friends and I played in that house whilst it was being built.'
I've not yet got to the stage of my neighbour's dad, who told me one day that he was one of the first tenants of our estate, way back in the 1960s or 1970s, and lived here whilst every other section was being built - he also explained why our house numbering system makes no sense.
Having said that, do you know what really, really, makes me feel old?
Remembering when a gallon of petrol cost less than a litre of petrol does now, oh for those heady days when I could fill up my 75 for £15.