Or, the more dangerous (and some would argue useless) version is this...
- turn the can upside down and set it in a corner. Put a heavy weight on it so that the nozzle gets depressed (or rig up a long clamp or something that will hold the nozzle open)
- a bit of paint will come out, but eventually it will just start expelling the gas. (can has to be upside down...)
- leave it overnight. shake the can up every now and then to stir up the gases again and re-prop it upsided down to let all the gases out again.
- once you are TOTALLY sure all of the gas/pressure is out of the can, drill a hole in the side and pour the contents out into a jar. Be aware that sometimes the tip can clog and make you *think* the pressure is gone...
I've done it. It's possible, but arguably not neccessary. Swanny's version works just fine and has much fewer 'safety' issues...
Murray