Wrapped bags

Anyone who has had stuff swiped out of their zipped bags en route through O.R. Tambo, willingly opts for the plastic wrapping option before checking in. On a hard-shell suitcase it does little damage. On a soft bag it squashes the whole thing out of shape. But that’s not my main gripe. I want to know what arrangement the wrappers make for when arriving at the destination to cut the whole messy business off. We don’t travel with sharp objects so without a knife or pair of scissors, and short of chewing the plastics what does one do?