take the liberty of doing something

take the liberty of (doing something)

To do something without first seeking out or asking someone's permission. I thought I'd take the liberty of printing out some financial reports ahead of today's meeting so we would all be on the same page. I hope you don't mind, but I took the liberty of telling your husband you'd be late for dinner.
See also: liberty, of, take
Farlex Dictionary of Idioms.

take the liberty of doing something

(formal) do something without permission: I have taken the liberty of giving your address to a friend who is visiting London. I hope you don’t mind.
See also: liberty, of, something, take
Farlex Partner Idioms Dictionary
See also:
  • grease someone's palm/fist, to
  • cover
  • grab (someone or something) by the throat
  • grab someone by the throat
  • grab someone/something by the throat
  • get someone's dander up, to
  • help (someone) along
  • help along
  • die on
  • die on someone