OMG!!!! A MOUSE!!!!! (Spoiler?)
OK...this one always got me. Ginny (Amy Steel) sees dead bodies of couselors-to-be, and her boyfriend gets killed...and Jason has been chasing her trying to kill her for about 10-15 minutes when she hides under the bed.
Oh, yes...a deranged, hooded killer is chasing her after killing others!
A mouse walks by her, causing her to pee her pants.
Guess the mouse was scarier than Jason.
Just saying. :P