Play fast and loose

Translation of "play fast and loose" into Russian

He tends to play fast and loose with the rules, which often gets him into trouble.

Он склонен вести себя безответственно с правилами, что часто приводит его к проблемам.

To behave in a reckless, irresponsible, or deceitful manner, especially by ignoring rules or treating something or someone carelessly.