Kickback is a leading cause of power saw injuries. A hazard inherent to all power saws regardless of brand or style, it occurs when the material binds or pinches the saw blade during a cut. In a split second, kickback can jerk the saw out of a user's hands or shoot the piece of wood he's cutting back toward him.
Warm vinegar will generally soften the most stubborn old glue on old furniture. Dipping the parts to be reglued in warm water, and then letting them dry out completely, will help to open up the wood pores and allow the new glue to enter the wood more freely. Warming the parts on top of a heater or in the sun will also help open up the pores of the old wood before regluing.