How was your day?

I don't think my Computer Sci. knows what he's doing half of the time. A couple of days ago, someone was messing around with the mouse on one of the computers and it changed it so the cursor moves around by itself and it disables any clicking and any keyboard interaction. He swapped the mouse and keyboard thinking it was a defect but then he kept trying to plug it in and out for about 10 or so minutes and then the bell rung. Isn't it obvious that it was definitely a software issue? Jeezus. Then he told a student to press F5 because he couldn't get the powerpoint to present on Google Drive, isn't that refresh? Then somebody else told him to press F5 repeatedly. What good does that do?

I would move to a different Computer Sci. teacher but he's the only one in this school.