One small part of the basement remodel project was replacing the door that separates the east half of the basement from the west half. The door style, while architecturally interesting, didn't match the style of the rest of the doors in our house, and the size of the door was non-standard. Here's the culprit.
I used a rotary hammer to loosen the mortar around the header, and then beat it with my 10 pound sledge hammer to move it off the wall. I was appropriately concerned about safety through this procedure, and supported the header with two nylon cargo straps attached to hooks temporarily mounted in the floor joists.