The BEST way to pull nails with your CLAW HAMMER | video

[Frank S]

While his explanation for pulling nails using a hammer to bend and walk them out works fine for the slim slick wire nails out of a nail gun or common nails in the 2 1/2 to 3" size ranges try doing it with concrete or ringed decking or galvanized nails and many of them will break instead of pulling out.
Placing a block of wood under the hammers or crowbar to serve as a fulcrum works as well as anything most of the time. and is especially good if you are trying not to damage the surface of the wood with dings or bruises from your tools.