This is the hilarious moment a sleeping schoolboy wakes up and puts a plastic chair on his back - like a rucksack.<br /><br />Four-year-old Dean Lewis Pagtakhan was napping after a day of lessons at the kindergarten school in Cavite, Philippines, last Wednesday (August 29).<br /><br />The lad's teacher started to pack away his books causing Dean to suddenly wake up. <br /><br />Still bleary-eyed, the youngster stood up from his seat and started walking away. <br /><br />CCTV shows him reaching and picking up a chair to his right-hand side, which he swings onto his back and puts his arms through the holes. <br /><br />Those watching and filming the CCTV are in hysterics as they watch the footage back. <br /><br />The hilarious blunder sent his teacher into hysterics before several other children ran into the classroom to see what had happened. <br /><br />Dean's grandmother Agnes, who recorded the video, said it was funny - but blamed a superstition of the child eating lunch with his pregnant aunty.<br /><br />She said: ''This happened at about 4pm when the classes had finished for the day. I thought it was so funny when I watched it. All of the teachers were in hysterics as well.<br /><br />''My grandson is never normally like this. He usually has a lot of energy and runs over to see us. <br /><br />''It's the first time he has ever fallen asleep at school and everyone is sure it's because he was sharing food with his aunty that day. <br /><br />''She is pregnant and it is a local superstition that if you eat food with a pregnant woman you will become sleepy.''