What was it about agents - and apparently vigilantes - that they just had to test their abilities against someone else, particularly if they saw that there was a similar style in play and if they had a reasonable chance of assuming that the other person wasn't actually going to kill them? She'd thought it was bad enough when agents got into betting pools over hallway fights, but this was ridiculous.
Then again, this was Nightwing. He'd been trained by someone who took everything as a challenge and tested everything for weak points on a regular basis, both building and human components. She would have to revamp security again, which would at least slow him down.
"Nightwing, while I'm always glad to see you making friends with my agents," she drawled, "we both know perfectly well that whatever yours are made of are more than a match for hers; if you don't come in the front door, you can't share our tech." That was just basic manners. She glanced over at Agent Morse's suggestion, almost smiling. "You're welcome to try," she said graciously.
Either way, he'd get in when he needed to get in, and Maria actually sobered as he passed over a real-live-note, paper and ink. Taking it, she turned it over, examining the quality. If it was something that he didn't want recorded... "I'm going to guess that this doesn't say 'Do you like me, check yes or no' with little hearts," she said dryly.