Ok, Today we had some precaution exercise to prevent toxic gas from entering.. and we had to seal the whole classroom with a layer of plastic sheet and even had to make a toilet with tables and chairs in case someone needs to answer nature's call and the classroom is sealed off..

It looked something like this .. couldn't get a good picture of it, the rubbish bag was the toilet bowl, and the tables as doors. The whole exercise was kinda stupid but well, it was fun to make the toilet though, and a ''free'' period is always welcome! xD