Cross country race

During my college days there was a competitionfor cross country race that was around 8 kms.to my surprise i found my best friend JHON whowas too lazy and never use to take part in anycompetition came first in that race. when he reachedthe finishing line, me and my friends went towish him. I told him "Jhon u made it and u provedthat u can win the race too." but Jhon insteadshouted at me and said " WHO LET THE DOG BESIDE ME"