"Suuure. I have time to talk. It's not like I was sleeping or something." (tone sounds sarcastic)

"Are you crazy?! Its midnight! I was asleep!" (hangs up - tone sounds angry)

"It's very late and I was asleep. I can't talk right now but I can call you tomorrow." (tone is even and calm)

"Ummmm...sure I guess have time to talk to you" (tone sounds resigned)