He spotted it at once: a dazed and ruffledlooking barn owl was sitting outside on the kitchen sill, having just collided with the closed window.
He took the last few steps at a run, wrenched open the door and almost collided with Mr Weasley, who was standing right outside, looking pale and apprehensive.
A few minutes later, the Knight Bus screeched to a halt outside a small pub, which squeezed itself out of the way to avoid a collision.
Something collided hard with Harry’s shoulder, knocking him sideways.
Snape’s office had come back into view and he realised that he had fallen to the floor; one of his knees had collided painfully with the leg of Snape’s desk.
They were I almost there when Harry heard something large and heavy collide with the door Hermione had charmed shut.
He made as though to stride away from his Thestral, but, unable to see it, collided with its hindquarters and almost fell over again.
Uncle Vernon leapt backwards in horror and collided painfully with a luggage trolley.
…like a gunshot; a cat streaked out from under a parked car and flew out of sight; a shriek, a bellowed oath and the sound of breaking china came from the Dursleys’ living room, and as though this was the signal Harry had been waiting for he jumped to his feet, at the same time pulling from the waistband of his jeans a thin wooden wand as if he were unsheathing a sword — but before he could draw himself up to full height, the top of his head collided with the Dursleys’ open window.
He was hurtling along the corridor towards the Department of Mysteries, past the blank stone walls, past the torches — the plain black door was growing ever larger; he was moving so fast he was going to collide with it, he was feet from it and again he could see that chink of faint blue light — The door had flown open!
Halfway between cabin and castle the red beams collided with her; for a moment she looked luminous and glowed an eerie red, then she lifted right off her feet, landed hard on her back, and moved no more.