be an open invitation for/to somebody
From Longman Dictionary of Contemporary Englishbe an open invitation for/to somebodybe an open invitation for/to somebodyCARELESSto make it very easy for someone to rob you or harm you Leaving the car unlocked is just an open invitation to thieves. → invitationExamples from the Corpusbe an open invitation for/to somebody• Leaving the car unlocked is just an open invitation to thieves.