As soon as you hear that phrase, be on your guard. It almost always means the person is, in fact, crazy.
But I try to be tactful...
"Crazy is no longer really in popular usage in Psychiatric circles" I tell him... "There's much better labels. More descriptive. And, hey, aren't we all a little crazy to be working here?"
- "But I'm not crazy" he tells me.
"I didn't say you were." I counter.
- "I know. But I thought you should know. I love you. And I'm not crazy."
"That's good." I say. "You know, the nice thing about aluminum foil is you can make these cool hats that block satellite waves from reading your mind...."
He looks at me. He has no sense of humour. "I'm NOT crazy...."