Male dogs are often quite independent and can be a little more difficult to train and control. Males also tend to wander and fight other dogs. Female dogs are more popular as family pets and may cost a little more. By nature females are affectionate and companionable, but unless desexed, will attract male dogs when in season and may reproduce every six months.
However, if you decide to keep your dog outdoors, it is important to consider how you'll ensure it receives the appropriate amount of human contact (particularly during those cold winter months in which we'd all much rather stay snuggled inside rather than playing fetch with our pals in the cold!). An option could be to enlist the service of a dog walker. Also, if you work long hours or are sometimes forced to take overnight trips, it may be useful to consider "doggy day care" facilities to ensure that your dog receives the TLC and companionship it will need in your absence.
Keep your dog busy by prolonging his mealtime with a number of interactive toys such as Kongs, treatballs, or Bustercubes (treats can be easily pushed in but will engage your dog for hours trying to get them out). Also try hiding part of his meal around the yard to stimulate his natural foraging instincts. Treats and toys are available at the RSPCA online shop.
To be a successful pet shop owner, manager or employee, you need to be able to sell merchandise, from pet food and toys to cages, fish tanks, leashes and the pets themselves. Obviously you need to know about caring for different animals in order to keep the animals you are selling in good condition; and advise customers on the products they might buy. Some pet shops may be more caring for the animals than others.