History and math especially...
Waking up and finding the teacher calling my parents.
Anything that is mostly memorization rather than understanding & analysis. Usually that is a subject based on classification like Bio when poorly taught and history poorly taught. Never took organic chem but I'm certain I'd hate it too. [ But, .... when I took history in college it was really excellent. I was shocked at how much better it was than in high school.]
Math and biology. (my mom teaches biology)
