If I get a penny every time I see something primitive, someone primitive, or someone primitive doing something primitive... I would be the richest Prothean in the galaxy.
David and Simon were exploring a building (in the same city as Isaac and Jill), Simon went to investigate a noise without waiting for David, and he got attacked by an Amnesia Grunt.
OMG ruuuuuuun XD
You try running when it's got you.
RAAAAEEEEP!