While the people were friendly and good drivers will make a great taxi driver, what kind of person would make a horrible taxi driver?
Smoking is generally not allowed in the cab. This is partly because basically public places, but also because the taxi drivers often shared a taxi with another driver or two.
Someone who is a heavy smoker would make a terrible taxi driver because they would not be comfortable driving all day, do not smoke. This is likely to make them more irritable or make them more likely to stop every half hour or so to have a cigarette. Smoking is not good for passengers. You can hire a safe Heanor cabs from various similar sources.
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An angry person does not make good taxi drivers as they have to interact not only with many different people throughout the day but also with other drivers and traffic. Anger tends to bubble over with stress and driving is inherently stressful.
Taxidermy is the act of stuffing dead animals so that they can be displayed as a trophy, to study or to the museum. Some people who are trained in this practice may be confused by the name and began working as a taxi driver. They may not necessarily make the best taxi drivers in the long run.