Another Weasley - as if Greg hadn't just spent the whole day doing the other one's work for him so he could mess around away from the customers. And this wasn't just any Weasley but the Weasel - one of Greg's least favourite people, who'd called him stupid and married the mudblood who'd hit Draco. At least Greg had no obligation to pretend to be nice to this one. "No," he snarled, pleased to see he was still taller than Ron even when he drew himself up. He was confused - not that he'd admit it to Weasley - but he wasn't lost. He knew exactly where he was. He just wished Draco or Pansy were here, they'd have something clever to say to make Ron feel bad. The best Greg could really do was glare, which he did for a long time.
"Get out of my way, Weasel," he eventually said. "I'm allowed to be here." It was a pub, and none of the activities had membership lists as far as Greg knew, you didn't have to pay to be involved in them - so if Greg wanted to be here, he could, and even if he couldn't Ron would have to go get the owner or someone who actually worked here to throw him out.