I didn’t study at all yaar."
Them, the night before the exam 
Also them: first rank with extra marks somehow
Me:
Slept 2 hours.
Revised with 3 mnemonics, 2 panic attacks, and 1 existential crisis.
Walked into the exam hall with prayers and paracetamol.
Them:
“I’m just going to attempt what I know.”
Comes out smiling like they wrote the question paper themselves.
Signs You Have This Friend:
Never opens books in front of people
Claims they didn’t even read the syllabus
Secretly has color-coded notes and a brain from NASA
Conclusion:
We don’t need enemies.
We have that one friend.
And we still love them… but also slightly want to throw a textbook at them.