The Wittiest Thing I Ever Said

My better half recently finished a long, long telephone conversation with her sister. Upon hanging up, my sister-in-law realized that, somehow, she had forgotten to tell my wife something. She immediately picked up the phone and called back hoping to catch my wife. Instead I answered the phone.

"I didn't want to talk to you," my sister in law said after I answered hello.

"What a coincidence," I replied.