Briefing cabin crew on DAC flights, I've been saying for quite a few years now that if ever there's going to be a cabin fire (probably starting in a toilet) in an EK flight, it will be on the DXB-DAC sector. Those lads don't give a merde about anything the cabin crew say to them, and most become selectively deaf to anything said to them in whatever language the cabin crew may speak. Quite a few years ago, EK recognised the language problem and added a Bengali language PA safety brief, but I don't know if it has made much of a difference.
Readers who are of a Politically Correct persuasion might be offended, but Yo767's comments are pretty close to the mark.