My car laughed at me!

It's true! No other explanation. It was after workout. I had already turned of the alarm / unlocked the driver door. As I opened the door, I slipped in some kind of goo in the street and nearly fell on my ass. At that exact moment, my car alarm/horn honked - just once. Not the alarm going off. Not me hitting the horn (I was nowhere near it). Just one quick honk as I did a slip and fall. I'm certain it was my car laughing at me. I think it was getting even with me for, 20 min earlier, driving t