I took Geometry in 10th grade in high school.  We had to get each one of our test grades signed off by our parents.  Pretty much after every test I got a lecture from my mom.  I was pretty bad at geometry, mostly because of the proofs.

–

1st semester:

72
39
74
57
57
32
80
58
74
72

2nd semester:

50
73
66
66
72
91
43
86
46
80

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Pretty hilarious, really.  I ended up getting a C anyway, so I didn’t have to retake the class during summer.