That snort made Fred's jaw twitch. What right did Percy have to be upset if he was having lunch with dad, or anything else? It wasn't like they didn't work in the same building, or like Percy couldn't march his prissy arse down to dad's office if he wanted to speak to him.
"Harrassment." Fred said easily, still in step with his brother. "Or, you know, not. Since I've never harrassed you one day in your entire bloody life." He'd never seen it as harrassment, anyway. He'd prodded on and picked at Percy with George they same way they did to Ron, the same way they did to Harry or to Charlie when he'd been around. Almost the same way they did to Ginny, but hers was always a little less intense. Hell, it was the same thing they did to each other when no other targets were around to team up on. "Not my fault you can't take a fucking joke."