Well,for instance,if you call a toll-free number and end up talking to a machine that asks whether you want you call to be conducted in English OR Malay,most idiots would pick English and then.....they'd speak some freakish form of English......and then mix 'em up with some Malay......and then.....they'd say things in some freakish language which would usually end up sounding like white noise :D
Well,there is only ONE thing you can do in times like those/these.........just reassure these people that you only speak English ^_^
Of course,orang yang tak paham bahasa is a whole different story la.......