Bigger Wrench, yup, always a good idea. Just like a Bigger Hammer. Usually works. Channel Locks are real handy for stuff like that.
WD-40 and Duct Tape - great inventions.
bbl, time to fling some arrows.
Agreed.
If it's in too few pieces, spray 'em with WD-40.
If it's in too many pieces, get the duct tape.
I got the duct tape. Had to donate muh WD-40 to my sister since the movers wouldn't move pressurized flammable stuff.