Why You Should Silence Your Cell Phone January 21st, 2012 At this Orthodox Jewish synagogue in Presov Slovakia, Lukáš KmiÅ¥ is playing a classical violin solo when someone’s cell phone goes off. Trying to make the most of the interruption, Lukáš throws out some improv with the ringtone. Get the latest Flash Player to see this player. [Javascript required to view Flash movie, please turn it on and refresh this page]