Look, let's be blunt. Namor is stupid.
I mean, sure, he's big, and powerful, and one gorgeous hunk or mer-mutant:
Anyway, as you read (if you could take your eyes of those rippling muscles), Subby is after Attuma.
By no small coincidence (since this is their book, after all), the Avengers are after him too:
Sadly, no. Because Namor=stupid. And Attuma knows it:
It's too late to do much good, but at least Wonder Man can give Namor some educatin'...from the School Of Hard Fists!!
From Avengers #155 (1977)