these things happen

these things happen

It is common for unfortunate things to happen or for people to make mistakes, so there's no use worrying about it. A: "I'm so sorry to hear that you and Amy broke up." B: "It's okay. It hurts, but these things happen." A: "I feel so awful about breaking your window!" B: "Don't worry, these things happen."
See also: happen, these, thing
Farlex Dictionary of Idioms.

ˌthese things ˈhappen

used to tell somebody not to worry about something they have done: ‘Sorry — I’ve spilt some wine.’ ‘Never mind, these things happen.’
See also: happen, these, thing
Farlex Partner Idioms Dictionary
See also:
  • just (one's) luck
  • just my luck
  • just my, his, etc. luck
  • a sorry state (of affairs)
  • take things easy
  • what's done is done
  • worry about
  • worry about (someone or something)
  • worry oneself about
  • read the (hand)writing on the wall
References in classic literature
"Why should these things happen? Why should people suffer?
But it's only what I've seen over and over again--people seem to forget that these things happen, and then they do happen, and they're surprised.
The Voyage Out
'THESE things happened last winter, sir,' said Mrs.
Wuthering Heights
Sometimes these things happen on a personal level, and they happen in such a blur, while your consciousness is in a dense mass of disorganized emotions and thoughts.
Am I real?
Rapper-producer G-Eazy brings his These Things Happen tour to the McDonald Theatre, 1010 Willamette St., tonight for a general admission, all-ages show.
Buzzworthy
He added: "I was supposed to be getting the England job, then I didn't get it but these things happen. And I know it sounds corny, but there are worse things happening in life.
POLITICALLY INCORRECT; 'Arry: I wasn't axed for football reasons
"But as I've said, these things happen in the game.
Liv-id Bill in bust up
"Whether these things happen at all isn't clear." Nonetheless, the model makes several interesting predictions that may enable observers to check it.
Supernova burps rid galaxies of hot gas