My instructor kept yawning

Sorry if this fourm isn't the right spot but I had to post this because this behavior upset me.. I have a new guitar instructor and last night was my 3rd or 4th class with him. My class is at 8 PM. Last night, the guitar guy yawned 3 times. His mouth open, yawning out loud. "awwwwwwwwwww I'm so tired". I found it so unprofessional. I wanted to ask him if I'm boring him :) but I didn't. Wanted to suggest if I should come to an earlier class like 7PM but didn't.... I kinda took it personally and not sure why. Should I have said something to him about it?

Put the internet to work for you. via Personal Recipe 2629984