I am lost

A man had a pig, at the end of the day he decided to abandon it which was a boring nuisance. However, this pig was so smart that every time it knew the way to home.

One day, The man drove the car to throw the pig out, and after a while he gave his wife a call :"Does the pig at home?"

"Yes." Said his wife.
"Put it on the phone," The man said indignantly, "I am lost!"