Just woke up to get water at 2am - go downstairs and automatically check front door is locked as I pass it as husband has many times before forgotten to lock it - it's unlocked and it's very slightly ajar. Go and check back door, that is also unlocked.
I check car keys are still there and nothing looks disturbed and go up to bed. My husband asks me what is going on as he's heard me opening and locking doors. I say in a hushed but annoyed voice you left both doors unlocked when you came up to bed (hours after I went to bed) - he just sighs and rolls over - I say someone could be in the house and he just lets out a mocking sigh like it's no big deal.
He genuinely thinks going to bed and forgetting to lock the house is no big deal, and I feel like it's a potentially dangerous fuck up - I am so annoyed, not about the mistake but about the blase attitude to it - he will clearly just do it again as to him it's "no big deal" so I'll add wake up and check doors are locked after he comes to bed to the mental load.