"The #onosecond is the second after you make a terrible mistake. The second when you realise what you just did and that there’s nothing you can do about it, the second when all the now-inevitable consequences flash through your mind. It is the second after you send a text message to the wrong person, after you delete the wrong file, after you spill the secret that you thought they already knew. The onosecond is that stomach-dropping, breath-stopping moment when all you can do is say 'oh, no'."