Eddie the Echo

The reason I bring this up is that there's a guy who runs a little coffee-and-pastries stand on the ground floor of the building where I work. He's friendly, always pleasant, and never fails to say hello when I walk by.
The problem is, he always says it twice. "Tjena tjena," he'll say. If you say "hej," he'll come back with "hej hej!" I suppose it doesn't seem that annoying in print, but it has gotten to the point where my co-workers and I have started to speculate about how he might react to other "inputs." *
For instance, I wonder what would happen if I said "hej hej" to him myself.
Hej hej hej hej?!?
On second thought, that would make him sound like a Swedish Fat Albert, which is a bit much for my brain first thing in the morning. Maybe I'd better just keep my sparkling wit to myself.
* (Nerd alert: if you are an engineer, you may recognize this as simply the measurement of an impulse response. If you value your friends, you will keep this to yourself, too.)




