233 - Forgetful

Student: I need to get a new folder, because mine is falling apart [it was barely starting to tear at the top in the middle].
Me: That's not too bad. I have a student who has two halves of his folder. Sometimes he forgets one...
Student: Oh, that's pretty bad.
Me: Yeah...he's kind of forgetful...
Student: One time I lost a shoe at track practice.
Me: Did you leave it there, or did it come off?
Student: Well...I was running, and then I looked down and realized it wasn't there. I'm not sure if I forgot to put it on or if it came off and I just didn't notice...