Lozza, omg! Wow! How exciting and sweet!
WT, you didn't make it sound abusive, but YES, insensitive. My own dad is a "teaser" and he does it to this day and when I tell him how much I hate it, he just says I'm being oversensitive. It has been a wedge in our relationship my entire life and I never am truly comfortable around him because he always has something nasty to say. (Every time I see him, the first words out of his mouth are criticism.)
I think you're perfectly right to make him back off the twins. Honestly, who needs to be that kind of tough anyway? That just sounds like it will lead to defensiveness.
Poor little baby! Remind your DH that someday when he's old and can't defend himself, he'll have two "tough" men looking after him. Would he treat an old person that way?
Men! DH was away all weekend on his company cruise and I was home with the baby and working (to be fair I had my sister to help... sometimes)... so he makes dinner while I'm feeding the baby and putting her to sleep and then was like, "You can bring me my food so I can catch up on this TV show." And I was like, UM. And he was like, "I cooked for you!" Bitch I just fed your child and put her to sleep, like I have done 99% of the nights of her life.
Again... men!