Make a grounding wand to stir the grounds and you can ground yourself also.
We had a dingus for a plant manager once, and he decided to paint the entire floor under one of our extrusion presses and handling tables with epoxy paint. In the winter months, the floor gave off static (think waving an inflated balloon near your hair).... and since the aluminum was transferred over graphite and carbon beams and rollers, it took on a charge that could actually be read with a voltage meter. When the saw operators touched the metal, it shocked the heck out of them.....so, we made up grounding wands so they could discharge the metal before running it through the saw.
Don't know if this will solve your particular problem, but might be worth a try.Go to Lowes and get a grounding plug like this:
Then get:
1. Take a length of wire (such as a section of a coat hanger).
2. A short piece of wooden dowel
3. Wire
Drill through the dowel lengthwise.
Solder one end of the coat hanger piece to the wire and the other end of the wire to the tab coming out of the bottom of plug above.
Insert the coat hanger through the dowel and secure it with epoxy.
Then there is this:
http://www.ebay.com/itm/ESD-Anti-Static-Earth-Bench-Mat-600-X-500mm-Includes-Euro-Grounding-Plug-Kit-/380460101519http://www.tecratools.com/product1183.html