[Stark_GOP]

Who shoots a gun by pulling the trigger with their thumb?

[CT-Freeper]

Who shoots a gun by pulling the trigger with their thumb?

Someone not too familiar with guns?

Seriously, I'm not sure on the specifics of where (on his body) Vince Foster allegedly shot himself; maybe he figured pulling the trigger with his thumb was more ergonomically comfortable?? ;-)

[Erasmus]

Who shoots a gun by pulling the trigger with their thumb?

That's a regulation grasp when the barrel is in your mouth.

[Don Carlos]

A democrat?