The Texas Chainsaw Massacre/Funny


 * Several in the third movie, but one in particular from the third movie. Leatherface is seen playing with a speak and spell-esque toy, and it shows a picture of a clown; Leatherface methodically types "FOOD". The toy tells him "Sorry! Wrong answer!" It shows him the clown again, and again, he slowly types "FOOD". It tells him that he got the wrong answer again, and he promptly smashes the toy.
 * Bit of dark humor, but when Leatherface is attacking his former boss in The Beginning, the guy tries calling for help. The operator hears his screams and mistakes him for a hysterical woman.