During attendance, the professor called my name, but the person sitting behind me, Carl, covered my mouth with his hand. When I tried to push his hand away, I couldn't match his strength. As the professor kept calling my name, I decided to lick Carl's hand, which made him take his hand off my mouth. Then, I said,

"Present, sir,"

While raising my right arm impulsively. The professor noticed me and checked my attendance. After that, I looked back and glared at Carl, who playfully smiled at me and asked,

"Ano?"

With a confused expression. I felt irritated and responded by saying,

"Tangina mo mamaya ka sakin,"

Then I turned my back on him and focused on the discussion.