Lisa on Ice - S6-E8
Corrected entry: When Lisa runs into Bart's room and throws a snowball at him, it is quite a powerful throw and on target as it hits him in the face. Yet when the kids are receiving academic alerts in the gymnasium, Lisa can barely throw the piece of paper she has been given. Surely she wouldn't have been able to throw the snowball so well if she lacked such skills?
Lisa on Ice - S6-E8
Corrected entry: When Homer is signing Bart's academic alerts, you can see that the writing on them is complete gibberish.
Correction: Homer only has to sign the forms, not print anything out. It could be how he signs them.
Correction: Not exactly. Once, I threw a tennis ball hard enough to give a kid a good black eye pretty dang fast. However, when my brother was trying to teach me baseball about a day later, with a similar tennis ball, I couldn't throw it nearly as fast.