"Professor McGonagall, please go to Mr. Filch at once and
tell him to search every painting in the castle for the Fat Lady."
"Well, get a move on, I want you to look after the bacon. And don't you dare let it burn, I want everything perfect on Duddy's birthday."(PS2)
"Hullo," said the boy. "Hogwarts too?"(PS5)
"Swish and flick, remember, swish and flick."(PS10)
Up in the air, Snape turned on his broomstick just in time to see something scarlet shoot past him, missing him by inches - next second, Harry had pulled out of the dive, his arm raised in triumph, the Snitch clasped in his hand.(PS13) Since Malfoy isn't in the picture, and since Harry is neither injured nor using his wand, and since it isn't raining, this has to be from Gryffindor versus Hufflepuff in Harry's first year.