Reminders

I just had to stick a note on the back door to remind me to lock it- that could be a bit worrying. Does anyone else have to take such precautions (I forgot to lock the door once last week and again today)? I can’t help wondering if it is a symptom - sign of the early onset of something which I could do without.
Thanks

Went through a faze early morning when dark. just have to concentrate on one thing at a time Even double check