His father was so happy with it. However, his mother, Karen, just couldn't believe her son got 90 in history.
After taking a closer look at the marks, she found that the handwriting style of the 9 and the 0 are different.
"Johnny, you are so busted. Tell me, did you add the 0 to your marks?"
"No, mum, I didn't."
"I am asking you once more. Did you add that fxxking 0 to your marks?"
"Mum, no, I didn't add that 0".
" OK, as you're not telling the truth, you are grounded for 1 month."
"Mum, no, please, no, I really didn't add that 0."
" This is your last chance kid, tell me the truth."
"....... I just added the 9 to it."