Cross Country Race

During my college days there was a competition for cross country race that was around 8 kms. to my surprise i found my best friend JHON who was too lazy and never use to take part in any competition came first in that race. when he reached the finishing line, me and my friends went to wish him. I told him "Jhon u made it and u proved that u can win the race too." but Jhon instead shouted at me and said " WHO LET THE DOG BESIDE ME"