the bag was moving

On Saturday i went to McDonald. I put my bag down
and went to order. Then my brother saw my bag
moving so ran to me. I was like ‘what how's that
possible’ so i ran back to my bag and i was still
moving. So opened my bag and there was
a… monster! the monster was so angry that he
attacked me and my brother. Finally the
mother monster came out of nowhere
and took the monster away.