Well, here's a true story:
In the late 1970s. I worked as an aide in a psychiatric hospital. Part of the gig was to mingle with the patients, playing Scrabble, shooting the bull, etc. One day I'm sitting arounf talking to one patient who's half-conversing while all the while looking out the window.
All of a sudden, he jumps up and says, "LOOK, IT'S JESUS!!!"
I turned around, and all I saw was a white panel truck. "Dude," I said, "that's just a panel truck. Relax."
The patient said, quite emphatically, "DAMMIT JIM, I KNOW THE DIFFERENCE BETWEEN JESUS AND A PANEL TRUCK!"
One of us had to be wrong....