When they're pint size and have to pull their punches, that's a little unnerving.

[Steve is bothered by it some, but he used to be so powerless, so the fact that he didn't lose all of the serum is enough for him to be thankful, but Thor definitely lost more than Steve did, and Steve couldn't take on an Onix like that, even with it taking it easy on him]

My gal makes up for where I lack, [pats Grace's head] so there's that.