Pan Yunsheng, a veteran, used to train army dogs years ago at a field force in Southwest China's Guangxi autonomous region. When his love for dog training did not fade away after retirement, Pan opened a dog boarding and training center in the suburb of Beijing six years ago.

Pan has trained hundreds of dogs in the past years. Now, around 50 pet dogs live in Pan's training center, with some of them boarding temporarily, while others training hard for a graduation certificate.

"Our center is like a kindergarten for dogs," said Pan. He treats them like his children by providing them air-conditioning in summer and heating in winter, with electricity bill each month reaching 8,000 yuan ($1,195) in winter. Pan's training center posts revenue of about two million yuan a year, and he harvests a big hunk of love at the same time.