The Tirupur South police took two youth into custody for allegedly breaking the rear windshield of a State-owned public transport bus at Old Bus Stand here on Monday. Police sources said M. Prem (19) and M. Kannan (21), both working in a restaurant, boarded the Udumalpet-Erode (via Tirupur) bus at Palladam and they argued with the bus conductor when he demanded fare. The wordy duel continued till the bus reached Old Bus stand. The youth then tried to go away without paying for the ticket. When the conductor insisted that they should pay the fare, the accused pelted stones at the bus damaging the windshield. They were immediately caught by people standing there and handed over to the police.