Common Sense, Moony!
A/N: I just had a sudden inspiration and I had to write this, but keep in mind that I have a tendency to come up with pretty weird stuff, so read it, and hopefully you'll like it. By the way, this drabble takes place when James, Sirius, Peter, and Lupin were still at Hogwarts.
James Potter was in the middle of a strange dream in which Sirius and he were shooting ferrets out of cannons toward the performers at Wormtail's ballet recital. Right as he was telling Sirius that they were officially out of ferrets and would have to start on the raccoons, he was awoken by a loud slam.
He sat up so as to see the source of the noise, and saw Lupin, standing at the door that he had apparently just slammed, panting heavily.
"What's happened?" he asked worriedly.
"Prongs, we gotta get out of here now!" Lupin said.
"Why? It's too early!" he argued.
"Well, I went down to the kitchens to get some chocolate, and I accidentally opened up a pack of Combustible Creams, and now the common room's in flames!"
"Moony?"
"Yeah, Prongs?"
"Why not put the flames out with magic, and let me go back to sleep?"