Alcoholic!!

Jerry read a poster on the way back home from work.

The poster read "Are you an alcoholic? Call us. We will help" 

Now, Jerry was an alcoholic and was looking to get some help since a long time. He thought there was no harm in trying the number given in the poster.

When he called, it turned out to be the number of a liquor store. The offered, "Buy one and get one free."