Wrong flaw. This argument makes an assumption about the author’s earlier desires based on their present state, whereas the stimulus confuses a byproduct of getting things you want with the motivation for wanting those things.

Wrong flaw. This argument confuses fear with a lack of desire to learn—even if something scares you, your desire to try it out could outweigh the fear. The stimulus mistakes pleasure, or a byproduct of obtaining something you want, for the reason that you want those things.

This author concludes they eat pizza because they want a stomachache, and supports this by saying that any time he eats pizza, he gets a stomachache. This is unsupported in the same way as the stimulus—a stomachache is a byproduct of eating pizza, and the author assumes a byproduct of something must be the motivation for wanting that thing.

No flaw. If every time you have partied with Julio, you have enjoyed yourself, then it is reasonable to expect the same from the next party with Julio. The stimulus, however, deals with motivations for wanting things vs. the consequences of obtaining those things.

Wrong flaw. This author is speculating about their enjoyment of a basketball game with no evidence about what enables them to enjoy that type of game, whereas the author of the stimulus assumes that that one’s motivations for wanting something are always the same as the consequences of getting that thing.