Umklamo walo mshini we-ayisikhilimu ombozwe kabili uvikela isitsha sephepha ukuthi singavuzi, kuyilapho ifilimu yangaphandle ye-PE ixosha amanzi namafutha, kanti ifilimu yangaphakathi ye-PE ivikela umzimba wendebe yephepha ukuthi ungaguquguquki, okwenza uqine futhi uhlale isikhathi eside.