Principal: Internal substitute teaching will be on the rise this semester. Please keep an eye out for memos, and be on time for any extra internal subbing.
Teachers: Why? What's happening?
P: Please check the sub schedule each week for details.
T: Why does it only have times and dates, no information on who we are subbing for?
P: That's secret information. The management team doesn't want you to know that we're giving extra holidays to our drinking buddies.