The unusual teaching method of Lei Shuang has proved fruitful, attracting the attention of over a million followers on the video-sharing social network Kwai. The first step is carving out a watermelon and sticking on numbers. Once inside the car, Shuang inserts a fake gear stick as he teaches students how to change gears safely and correctly. He also uses other fresh produce from time to time, including a pumpkin and aubergine.WATCH: Driving Miss Caroline - helper's hilarious, inspiring first experience behind the wheelA video of a Cape Town man taking his family's helper for her very first driving lesson is making headlines - and for all the right reasons. Caroline Ndlovu has been working for Joshua Rubin's family for more than 10 years and expressed interest in learning to drive.