Q:

Why am I not dead after repeatedly touching a high-voltage source? 

While playing with mosquito racket in my home, I unscrewed the racket and touched the 2 wires with my hands.  I felt that my bones were dislocated, I got shocked, but I am not dead. 
My calculations say that I should die:
the output voltage is 5 kV to 10 kV, my body resistance is approx.  50 kΩ, the current through my body is 0.1 A if 5 kV to 0.2 A if 10 kV.
According to the table at https://www.physics.ohio-state.edu/~p616/safety/fatal_current.html I should die; I tried this many times but I am still alive. 
I think my interpretation regarding current, voltage and my body resistance is wrong (if right I would be dead by now) - please tell me why I am not dead? 

A:

The circuit is not quite as you have described.  As stated in the comments (amongst the sea of humor), is that a bug zapper is not an ideal voltage source.  It can't deliver very much power, even though the voltage is high. 
You can consider the circuit more like this:

simulate this circuit – Schematic created using CircuitLab
(values are guestimates). 
The net result is you will get an initial current spike of maybe a few 10's of milliamps, but only for a few microseconds.  After that the bug zapper simply cannot sustain the current, and so the terminal voltage will drop, and the current will most likely end up being less than a milliamp. 
It's not the peak current that kills you, but a current sustained long enough to deliver enough energy to kill you. 
As to why it kills the bugs, that is simply a case of bugs being smaller than you.  It will take far less energy to cook a small bug than it will to stop a human heart. 

A:

Passing the current through a finger is relatively safe, as there is not enough current to burn you, and it's far from your heart.  
Passing the current from hand to hand puts the heart somewhere "in the middle" of the path, but clearly not in direct series.  Plus your skin can still present a large resistance.  
If you pass the current across your chest, the chance of death is higher.  
If you had probes that went deep into your chest, and passed the current through the probes, you'd dramatically increase the risk. 

As others have stated: The bug zapper has a very limited amount of power that it can deliver.  
There is enough energy to fibrillate a bare heart, but yours is protected in your body. 

A:

To put this more like an electrical engineer would put it: this high-voltage source has a high internal resistance, and understanding what that means answers your question.