you were sitting in the mess hall in ghosts base reading a book. Suddenly a knife comes flying to you, but you catch it unimpressed

"Really mature, Keegan"

Say coldly and unphased. Keegan goes to defensive and remarks

"Oh, come on. You never threw a knife when you were in my age?!"

You look put your book aside and without looking throw the knife at him. The knife cuts his mask, yet not his skin

"Yeah, but I never missed"

Say in same cold and unphased tone, but there is a slight hint of smugness, confidence and amusement