Harrison could still remember the day he first met the Doctor. He'd been cutting through the graveyard on his way home from school, when all of a sudden, a blue phonebooth appeared in front of him, and out of it came a strange man saying, "don't blink." That's all, no introduction or how do you do, "don't blink."
Before Harrison could say anything, he saw a flash of movement and was being pushed into the blue box. Once inside, all Harrison could notice was how big it was.
"Yes, it's bigger on the inside," the stranger said laughing. "There's a lot about the TARDIS you would find interesting, Harrison."
"Wait. How do you know my name?"
Again the man laughed. "There's a lot I know about you, some even you don't know yet." Harrison's confusion must have shown, because the man was grinning even wider now. "Welcome to the TARDIS, Harrison, she'll take you anywhere you want to go." As Harrison looked around in awe, he hardly heard the next words. "However, for now, we're taking you home."
Disappointed, Harrison agreed, knowing it would probably do no good to argue. As they appeared in his backyard, the man took off his bow tie and wrapped it around Harrison's neck. "I'm the Doctor and someday, I'll be back for that." With that he was gone.
The years passed and as Harrison grew older, he found himself thinking less and less of the Doctor, until one day he found himself grabbing the tie and heading back to the graveyard. Nothing much had changed, but Harrison found himself drawn in by a stone angel. All of a sudden, he felt a gust of wind and heard those words again, "don't blink." This time they were followed by more, "take two steps back and you'll be in the TARDIS, Harrison."
Taking those steps, Harrison found himself back in familiar surroundings, a place he'd almost convinced himself he'd made up. This time however, the Doctor wasn't alone. "Harrison, meet Amy Pond." The Doctor said, motioning her over to his side.
"Nice to meet you," Harrison said, raising a hand for her to shake. He found himself staring into those eyes, something strangely familiar about them. Shaking the feeling, he turned back to the Doctor, "you're not taking me home again are you?"
The Doctor laughed, pleased that Harrison remembered. "Not unless you want to. Speaking of which, you still have something of mine," he said, reaching for Harrison's pocket and pulling out his tie. "Now where to?"