I hit the roof. As if a kid is ever going to be able to get a job interview with a name like bloody Loki on his CV.
Yes, not being Scandinavian at all and living in the UK, I’d definitely want something more low-key than that.
Bastian
I know it’s a (relatively) normal name, but would you really want to give a child a name where it sounds like you’re shouting an insult until people hear the end bit and realise you aren’t? I heard of somebody called Eubaston, which is even worse! Might as well name them Nicompomble or something stronger than like that 
Vercingetorix
Seriously, though? Apart from five syllables being wholly impractical, it just sounds like a friend of Asterix, Obelix, Getafix and Vitalstatistix. Either that, an antibiotic or an industrial-strength toilet cleaner.
He's back in the room and says he wants DS to have a nice strong name to build his character
Or, to put it another way, he’s a big bully who wants to throw his weight around and gain validation from a tiny child’s misery. Is he also proposing on sending the child foraging in the woods for food or sleeping in the shed in winter – all ‘to build character’? Why didn't he change his own name to something everybody would laugh at so as to build his own character?
Zero
Whaaaat?!?! Why not just call him ‘Loser’, ‘Sadsack’ or ‘Billy-No-Mates’ if you dislike your child so much?!
What's there to argue about?
You get to name anything that comes out of your vagoo.
He can offer suggestions but the decision is yours.
Does that work both ways, though? Is it also up to you to financially support YOUR child, with him maybe offering a few suggestions as to how you could take in some ironing to do during the sleepless nights when you’re awake anyway? Why should he pay anything when the baby came out of your ‘vagoo’? That's real 'rod-for-your-own-back' territory - it’s really not a healthy basis for two adults who are bringing a child into the world together.
get a baby book (not too big!) buy 2 copies
Go through the book and put a colour mark next to every name you would be OK with.
He does the same with his book. Then compare the two.
Or, if you follow the modern surnames-as-first-names fashion, seek out a couple of old-style telephone directories
Every time I think of baby-name books, I always remember Michael McIntyre's joke about whenever you meet somebody called Aaron, you instantly know that his parents were just completely lazy when it came to picking a name
I genuinely never thought I’d see the day when calling a child ‘Carinthian McVitie’ in real life would actually be less ridiculous than some of these suggestions! Vercingetorix indeed!!