Observation of the day

There is a trailer hitch called an invisible hitch. I know because there is one on an SUV in my parking lot at work.

It consists of a whole assembly that hangs under the rear of the car. It's painted black, so it's hard to see.

But I know it's an invisible hitch, because every day as I walk past, I see printed accross the back of the assembly, IN BIG WHITE BLOCK LETTERS:

"INVISIBLE HITCH".