The student's error was converting a preposition into an adverb. Put it down. Daddy's always knocking me down. I'm going to close that up. Another misplacement put a high school teacher out of work when all he did was quit coaching.
All modifiers have that mischievous habit of appearing in the wrong place.
When they do, they are dangling or misplaced just hanging there not clearly attached to what they modify. For the most part, their misplacement is more humorous than damaging. If they damage anything, it is the writer's credibility. Readers may pause, chuckle, and then continue. But they will also question the writer's attention to detail.