Would you be offended if someone is calling you on skype using invisible mode?

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It gets into my nerve when people do that to me, It is really strange that they will call you while their setting is invisible. I prefer a person to call me using an online setting. I learn that some people do this because they don't want other people to disturb them while they are talking to the person they choose to talk. I also notice that some people go offline when they are hiding from someone or they had an argument and they dont want to be reach, so basically the idea is that they are just hiding. So it is rude when someone is calling you in an offline mode. Do you see it that way too?