Other people's mistakes arrive with excellent lighting. Ours tend to sit just outside the frame, quietly holding the camera. The verse isn't asking you to pretend nobody else caused the problem. It's asking where your attention actually does any good. Replaying your sister's part in it for the sixth time won't make the apology you owe any easier to say. Keeping score feels like activity, which is why it eats so much of the morning. Your own side of the ledger has one item on it that's still undone. Start there, before you open anyone else's account.
Not the perversities of others, not their sins of commission or omission, but his own misdeeds and negligences should a sage take notice of.
The Dhammapada, verse 50 (trans. F. Max Muller)