The giant sat back down on the sofa, which sagged under his weight, and began taking all sorts of things out of the pockets of his coat: a copper kettle, a squashy package of sausages, a poker, a teapot, several chipped mugs, and a bottle of some amber liquid that he took a swig from before starting to make tea. Soon the hut was full of the sound and smell of sizzling sausage. Nobody said a thing while the giant was working, but as he slid the first six fat, juicy, slightly burnt sausages from the poker, Dudley fidgeted a little. Uncle Vernon said sharply, “Don't touch anything he gives you, Dudley.”
The giant chuckled darkly.“Yer great puddin' of a son don' need fattenin' anymore, Dursley, don' worry.”
He passed the sausages to Harry, who was so hungry he had never tasted anything so wonderful, but he still couldn't take his eyes off the giant. Finally, as nobody seemed about to explain anything, he said, “I'm sorry, but I still don't really know who you are.”The giant took a gulp of tea and wiped his mouth with the back of his hand.
“Call me Hagrid,” he said, “everyone does. An’ like I told yeh, I'm Keeper of Keys at Hogwarts — yeh'll know all about Hogwarts, o’ course.“Er — no,” said Harry.
Hagrid looked shocked.
“Sorry,” Harry said quickly.
“Sorry ?” barked Hagrid, turning to stare at the Dursleys, who shrank back into the shadows. “It's them as should be sorry! I knew yeh weren't gettin' yer letters but I never thought yeh wouldn't even know abou’ Hogwarts, fer cryin' out loud! Did yeh never wonder where yer parents learned it all?”“All what?” asked Harry.
“ALL WHAT?” Hagrid thundered. “Now wait jus' one second!”
He had leapt to his feet. In his anger he seemed to fill the whole hut. The Dursleys were cowering against the wall.
“Do you mean ter tell me,” he growled at the Dursleys, “that this boy — this boy! — knows nothin' abou' — about ANYTHING?”
Harry thought this was going a bit far. He had been to school, after all, and his marks weren't bad.
“I know some things,” he said. “I can, you know, do math and stuff.”