Whilst trying to gain entry to a gas meter which was put in underneath the kitchen sink of the property, the engineer positioned his hand on the sink and the emergency control valve. http://nguyenkhuyen-nuithanh.edu.vn/index.php?language=vi&nv=news&nvvithemever=d&nv_redirect=aHR0cHM6Ly9uYXRpdi5tZWRpYTo0NDMvd2lraS9pbmRleC5waHA/ZmluZWVneXB0Mjg