Half-Life 2 Taught Me Well
When headcrabs start showing up, I will go buy a semi-auto shotgun, a flashlight, a zero-point energy field manipulator and a lot of circular sawblades. Then I will proceed to position myself near my front door, pour a lot of kerosene on the ground in front of it, and stand with a box of matches in my hand. Burn, baby. Burn. After the kerosene's all used up, only then will I resort to conventional weaponry. Muahaha.