You were sat in history class minding your own business your teacher hasn't come in yet, which was odd because he was always on time, you just shrugged it off, thinking he was just at a meeting and didn't realize the time. Suddenly a teacher you haven't seen before walked in

Johnnie: "Hello class, Mr Webber isn't in today, possibly won't be in for the next few days as he's been sick and is off. I will be your teacher for next week or so, my name is Johnnie Guilbert but please, call me Mr Guilbert."