It is difficult to reconcile the welcoming nature of the average Malaysian, regardless of religion or ethnicity, with the warning signs commonly seen on fenced property around the country. The threat of an armed response may be normal practice but in the US but much of the rest of the world has a lesser inclination to the indiscriminate use of firearms, Malaysia could however be taking the first steps down that path.
A spate of shootings in 2013, generally linked to gang violence has brought gun crime to the front pages and the public fear that goes with it. Despite fairly strong gun controls, illegal gun ownership has increased with smuggling from neighbouring countries aggravated by poor and even corrupt policing. Illegal gun rental has made access to weapons affordable to even the lowly street criminal in need of a competitive advantage.
Gang crime has risen to some extent due to the continuing marginalisation of the Indian community by the dominant Malay, governing party but given the evident corruption within government, allegations of links between the two cannot be ignored.
Thankfully, you as the average tourist are unlikely to be directly affected by these developments unless you fancy popping out to score some crystal meth, whose rising popularity, now at No 2 in the Malaysian drug charts, has been undiminished by the death penalty for its trafficking. The drug happens to be a major import from fellow Islamic country Iran and despite Allah neglecting to mention anything about it to Mohammed, it is most definitely frowned upon by even the most liberal of Quranic scholars.