"A prank?" his face scrunched up. "I know what pranks are, but doesn't this have the official seal? It's a real mission too.... ...right?" now he highly doubted the seal would even take him back once he got to him. "When I find out who did that, I'm going to blow them through the mountain!" he hissed, teeth gritted.

Oh, wait, he was supposed to try and control himself. This was the Hokage...
"Is anything in there real or it was all some stupidly elaborate prank?" his first mission as Jounin could be such a failure... Worse still was if someone switched the scrolls.