Hi, I Just bought a new house recently. There was a small lamp post Off the driveway, it was inoperable so I removed it. it was sitting on a concrete block that is approximately 2' x 2' and at least 1.5 feet deep. I have tried Digging it out with not much luck, tried drilling some holes so that I could chisel or sledgehammer it, no luck. Short of renting a jackhammer, any other suggestions? My concern with continuing to dig is that it looks way too heavy for me to pull out from the ground.