Karl's main problem with engineers, plumbers and workers who have to come to his house is that they're not serious. They seem to just wasteor be more interested in wasting their time doing things like reading newspapers,. or even going to the pub. Having a laugh means that they are not being serious and maybe trying to rip you off. So let's go through that again. Ok, we'll try and do it quickly. The fridge guy says that you should vack out your fridge. So use a vacuum cleaner to remove dust from the fridge. Ou suppose to vack it out. And what's the problem with karl's new fridge? It needs to be fitted properly