Yay ! a substitute

What a bad day our teacher has a flu
Bad day huh?! Says who??
The substituted came in, yay! we got the crazy lady
Spit balls flying pranks are being set up, and everyone went crazy
She doesn't even open her mouth because she is too lazy
Pranks were so funny tears started falling, she got fed up and that’s when she opened her mouth
But all that came out was burp but it was so loud