Be Careful!

Voltage
,(static or otherwise) will always seek a lower impedance,
path to ground from the chassis, rather than through any internal electronic  circuitry.

It will still seek all possible paths to ground, only majority of the current will go thru grounding of the chassis.  Grounding is very important, but danger still exists.  Humidifiers, anti-static mats or sprays, discharging yourself on the different object etc. are all very good ideas.

mg16, I think the chassis being grounded is going to be what shunts the static shock from your body, creating the shock.  It's the same concept as touching the screw on the switch cover plate on the wall.

Up here in the northwest, real cold weather is rare, but right now we are in a cold snap that is just below freezing.  Whenever I touch any component on my system I can get shocked.  I got shocked touching the plastic eject button on my cd player!  It's just current build up in my body though, so what I do is firmly touch one of the metal supports on my audio rack to drain the current.

The fingers are sensitive, so I use the back of my hand.  Or one could have a small metal hand tool to pick up and touch the metal rack so that one doesn't feel the shock at all.   A small wrench, punch, whatever.