Say Hi To Your Mom - As Smart As Geek Is Chic Right Now Chords & Tabs

this is my second tab and im not sure if its right but it was as close as i could get.

intro:
D
[ Tab from: https://www.guitartabs.cc/tabs/s/say_hi_to_your_mom/as_smart_as_geek_is_chic_right_now_crd.html ]
D
 they made a mistake at the toy factory,
G
 forgot to turn off, the brain machine.
D
 so when security opened the door the next day there was a
 G
plastic, brand new army.
D
 and they asked the gaurd who had made them but
G                                          D
 his knees were so shaky and he wasnt so smart
G                                D
           so he shot them all dead...


and thats pretty much the song except im not too sure about the last two lines, but 
you can figure it out...