I'm so tired (and annoyed)...

We are having our ??th Annual Sports Day today at Miri Stadium. Tomorrow will be the second/last day. I feel so tired and sleepy now... but I can't go to bed yet coz there's still something I want to do. Anyway, something annoying happened to me today back at the stadium. When I tried to re-enter the stadium (after going out to leave my backpack in my car), the secondary school students who were "guarding" the entrance (they were stationed there to prevent other students from going in and out of the stadium uncontrollably) wouldn't let me in. They didn't realize that I was one of the teachers! I felt really annoyed so I just went back to my car and sat in it till it was time to go home (waited for about half an hour). I didn't bother at all to tell the students who I am... because the same thing happened last year! (Was it the clothes?Or do I look just like another secondary school student?...I suppose it's the latter..heheeee..)