Why ringing me? I'm not "home"

Can a Database module be anymore harder than it is?
I thought I would be going to university early to revise but no such luck, I hardly did any revision at all. But I think it was because of mainly my friend A sort of distracting me with her non-productivity at the labs whilst I was doing database module; however I can't just go blaming someone for my lack of revision done today.

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I don't know about if this has happened to you and found it quite silly in a sense, but I find it annoying if someone rings me to tell me that they are going to my house when they know I'm not there. What do they expect me to do? Go home and accompany them when they are at my home. Why don't they just ring my home to see who's there since they are going to there instead of university with me. It's not like they are scared of anyone in my household, we all bloody lived together under the same roof for over 10years! If that doesn't get you to know each other well enough to not be frightened to talk to them, nothing else will! Gesh!

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Well after not doing anything productive at university, went home and yes, the kids were there. They were playing at my front yard with a cardboard box for some strange reason, whilst my 2 older cousins was inside on my computer. It was such a nice day too, I'm surprised they didn't go biking or play tennis before going straight on my computer.

Why can't people know that you shouldn't play on the road especially with a 3 and 5 year old kids when they don't even know how to cross the road?!! Our road isn't busy at all but there are some cars driving on our road like there's no tomorrow. That just makes me mad about the whole situation, I might sound like no fun cousin to them but at least I'm not giving them wrong judgement about the road. My sister was playing racing across the road with them 2!!! She should at least teach them to look both ways and whether they can hear any engine nearby before crossing it.