Maybe, maybe not.
The OP used a neon bulb tester which can light up from the minimal
leakage current along with the static charge build up to start the
lamp.

The only way for sure is to actually check the leakage current, or try
and light up a 60watt light bulb between the chassis and either ground
or the neutral line.

The OP also did not indicate whether the shock was a single instance or
a continual burning/tingling sensation.