Do you think I should take the last pizza slice?
Why do you want to take the last slice?
I want to be a man. It's time to take what I want.
It has nothing to do with your gender. You are trying to be selfish and not think about others who might want the slice. You should ask if anyone else wants it first.
It's my right to take it since there's free pizza. And all men take what they want.
I'm not saying that you're not allowed to take the last slice, just that you should ask anyone else if they want it first. It would be pretty rude to take the last slice if someone was still hungry.