Ukuvikela ukushisa kuhlanganisa ukuhlukaniswa komsuka wokuqhuma kumagesi okungenzeka aqhume nothuli..
Thatha injini engaqhumi, Ngokwesibonelo. Inesilinganiso sokuvikela esiphezulu kakhulu. Uma kwenzeka isifunda esifushane noma ukwehluleka, iqinisekisa ukuthi akukho zinhlansi noma amazinga okushisa aphezulu adluliselwa endaweni engaphandle.