driving theory test and a dog

When you think about all those different animals living on earth you will come to a conclusion that this is very strange tat we have chosen one animal to be our friend. I am talking about dog here. You can´t argue with the fact that it is the most common animal in people´s houses and that it is more popular than any other animal. Of course some people have cats or parrots as their pets but still dog is the number one in this situation. It is hard for me to imagine any other animal that would be the best for this position. It is also surprising how those animals were able to adopt our lifestyle and how helpful they might be. We hear about them all the time. Sometimes they save people´s life and we should be thankful for that. They are our best animal friends for sure. We can always trust them. There are some strange examples of this love between human and dog, though. I have heard bout a guy who came to his driving theory test with a dog and was determined to enter the room with him. He said that it is his friend and a lucky charm and he won´t take driving theory test without him. At the end he had to get rid of him for the time of examination anyway. What do you think about this situation?