Final answer:
One should inspect coupling devices regularly that aren't a fifth wheel. An example of a situation where more friction is desirable is in sports, where athletes use shoes with cleats to prevent slipping and maintain better control.
Step-by-step explanation:
When you use any coupling device other than a fifth wheel, you should inspect the coupling regularly. Just like the tires you choose for driving over icy roads need to create more friction, there are other situations where increased friction is beneficial. For example, in sports, athletes wear shoes with cleats or spikes to increase the friction between their shoes and the playing surface, allowing them to run and change direction effectively without slipping.