A lawyer walks into a bar and sits down next to a drunk who is closely examining something held in his fingers.
The lawyer watches the drunk for a while till he finally gets curious enough to ask what it is.
"Well" said the drunk, "it looks like plastic and feels like rubber."
"Let me have it" said the lawyer.
Taking it, he began to roll it between his thumb and forefinger, examining it closely. "Yes" he finally said, "it does look like plastic and feel like rubber, but I don't know what it is. Where did you get it?"