Greg winced as the child shouted at him, his voice just loud enough to make Greg wish the healers at St Mungo's hadn't fixed his hearing quite so well. Loud noises had never used to bother him when he was a child - it had even been an advantage, making it easier for him to concentrate in games of Quidditch or pretend duels. He scowled at the child, who wasn't a paying customer after all, before glancing up with a look of slight relief as his mother (Greg assumed) reminded him to talk more quietly.
"We have lots of fireworks," he confirmed. He was feeling relatively well disposed towards George's products, since they weren't ones he could 'test' on Greg for his own amusement. Besides, he liked the lights and colours - even if he could live without the noise. The woman looked familiar, though Greg couldn't place where he might have seen her. School, probably, but she hadn't been in Slytherin. It didn't really matter, so Greg stopped thinking about it, though he might have been able to remember if he'd tried a little harder.
He led Lisa and Christopher deeper into the shop. "The indoor ones are safest," he said. George had run through a comprehensive list of all the testing he'd done to make sure they were safe - all of which Greg had promptly forgotten, since George hadn't bothered to write it down for him. "But they're not as dramatic."