The Dior Dilemma

[Raynor]

I have overlook the importance of your statement, since, frankly, our whole debate hinges on this:

Elrond's phenotypes are all, or at least more often, Elven where there is a difference between Men and Elves. However, that does not change his genotype. He is still Half-elven.

In what instances does Elrond behave/is like a Man and not like an Elf (-if any, in fact)?