Why do work when a robot can do it for you? Many people waste their time mowing lawns, but with a robot lawn mower you can save time and money. these mowers are electric, which will save you money. the mowers are a lot like a Roomba and misses some of the lawn, because the mower has a random path some people do not like how their lawn looks after the mower is done.

https://www.wsj.com/articles/does-a-robotic-lawn-mower-really-cut-it-1460488911

this relates to engineering because engineers worked to build this contraption, and they used the engineering process to build it.