STUPID QUESTION

I was in the bar drinking and there was a dog in the ground close to where i was sitting,a manwalk into the bar and sat close to me, he saw the dog.instead of theman to ask is this your dog,the man ask does your dog bite? i said no.the man stretches his hand close to the dog, the dog bites his hand, the man shouted and said but u said your dog doesnot bite,i reply that is not my dog,my dog is at home resting.