Headcanon that when the batkids are mad at Bruce or just, mildly annoyed, they deliberately use last names that piss Bruce off, a lot.
Kidnappers over the phone: We have Richard Wayne in our custody, if you want to see him again-
Dick, mad after Bruce made him throw out the discowing suit, in a muffled voice: It's actually Richard Grayson-Kent, get it right
Bruce, on the verge of a heart attack: Chum Please
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Barista at Batburger: What would you like your coffee cup to say?
Tim, not mad, just mildly annoyed at the way Bruce did the reports last night: My name is Tim Jordan-Gardener-Cruz-Scott
Bruce, clutching his Jokerized fries so hard veins appear: You're grounded
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Author, at a book signing event: And who should I address this to?
Jason, after Bruce had let the Joker live yet again: To Jason Dent, please
Bruce, standing in line next to him, whom Jason had brought along to pay for the signed copy: I should make Harvey pay child support
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Announcer: And the award goes to, Ms Cassandra Isley-Quinn!
Cass, mad because Bruce missed another one of her recitals, walking up to the stage:
Bruce, signing to her: You're killing me, you know that? You're killing your father
Harley, sitting next to Bruce along with Ivy: Yes! That's our daughter!
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Duke, calling some shady Gotham lawyer right in front of Bruce after he lectured him a little too much about keeping up secret identities: Hi, how much to legally change my name to Duke Thomas-Queen?
Duke: Got it. Hey Bruce can I borrow 50$?
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Steph doesn't use the Wayne name anyway, but sometimes she uses it for Benefits™
Damian would much rather die than adopt the last name of anyone in the justice league or the batrouges or anyone except his very infamous lineages, because he doesn't want to associate with incompetent people