The word "morbid" refers to something that is related to a dark or unhealthy fascination with topics related to death, disease, or gloominess. Full definition
Simple sports like Bowling work fine, but thinks like Tennis and Rock Climbing have kind of morbid curiosity in watching how frustrated you get over time. (mclazyj.com)
A sense of morbid curiosity might cause you to look behind you, but you'll be surely punished if you do. (droidgamers.com)
The supersensitiveness that continually is being hurt and, once hurt, irascibly cherishes a grudge; the bare nerve of self that waits only to be touched to writhe and, writhing, tingles with rancor toward the annoyer; the evil eye that watches with morbid fascination for slight and insult and, once insulted, finds happiness only in thoughts of getting even — all this is sheer egotism in its barest and most repulsive form. (religion-online.org)