Wait a moment.
I have to take this opportunity to point out in the James Caan film "Alien Nation" (another classic) that the aliens genital region or whatever to get that "critical hit" that You wanted was near the armpits.
So....
Nah nanny boo boo, stick your head in doo doo.
Better yet, don't stick Your head in doo doo.
Try another experiment.

