There was this prank I did last month...
I nicked my classmate's pen. And when she wanted it she screamed, "WHERE'S MY PEN?!?!" and the whole class knew she lost her pen. (As planned.
) Then she asked me, "DID YOU TAKE MY PEN??" I slipped the pen to my friend and said, "No, I don't have it!" (I didn't lie...) Then I told her to give me her pencil case so that I could help her look. Then my friend gave me the pen and I put it inside the pencil case. I gave it back to her and said, "It really isn't there!!" Then she went all sad-like and sniffed, "Guess I'll use another pen... But that was my favourite.... sniff..." Then she asked me again, "Do you have it??" And I answered, 'I SWEAR I don't have it!!" (again, I didn't lie) Then she opened the pencil case and she yelled, "WTF IT'S IN MY PENCIL CASE!!!!!!!!!!" and she turned to look at me. I shrugged and said, "It wasn't there when you gave it to me..." (NOT A LIE) And the whole class thought that she was stupid.
Ah, the pleasure of twisting the truth.