One branch of McDONALD is to play Beethoven to calm raging idiots.
Fed up employees switch from pop hits after being pelted with coins during clashes involving more than 20 young troublemakers.
Classical music plays in the 24-hour outlet from 5 p.m Wrexham.
Wi-Fi will also sometimes be turned off at night.
Law enforcement Inspector Luke Hughes said, “Unless we have some local and unruly Beethoven enthusiasts, it should discourage some trouble.”
A Shepherds Bush branch of McDonald’s in West London started playing classical music earlier and said it scares yobs.
McDonald’s previously said: “We’ve tested the effects of classical music in the past and played it in some of our restaurants because it encourages more acceptable behavior.
Typically, classical music was played from the early evening and, in some cases, in small numbers on certain evenings restaurants.”