Corrected entry: In the pharmacy, Mrs. Reppler uses a can of bug spray and a lighter to make a torch to burn one of the spiders. She takes the lighter away, yet the can continues to spray flame for several seconds. This is not possible. The flammable liquid, even in a military flamethrower, needs a pilot light to continue burning.
wizard_of_gore
4th Dec 2008
Correction: Not true. The pilot light is to ignite the torch; it's not needed for continuous burning. Assuming it's being fueled steadily (as holding the button on a spray can will do), the fire will continue to burn. As the liquid expands into gaseous form, it touches the existing fire and ignites. In essence, the fire becomes its own pilot light. What she wouldn't be able to do is re-ignite the torch (once it goes out) without a flame.
JC Fernandez