Anyone ever tried to catch a carp on a fly pole?

I know it sounds crazy but I think it would be one heck of a fight.
Throw some corn out and bait up with a couple of kernels on a small strong hook and lay the line out in the corn.
If a carp does pick it up and the hook up is good you will be in for some fun.

It is fun. I would do that some times when barge fishing. Sometimes I would mount a Zebco on the rod instead of the regular fly reel.

One of these days I will go fishing again.

This is actually pretty common but with flies tied just for carp. There are even "bread" flies for those park carp. You are right it is a battle especially in a river or creek with running water. In the summer I will go to the Brazos and site fish them with the fly rod, it's good times.