Why do cats always want attention when you are busy?

My cats always want my attention when I'm busy. Especially when I'm on my laptop or when I'm eating, watching a movie, or trying to sleep, taking a bath/showering even when I'm sound asleep they wake me up by acting annoying and crazy at night and want to go outside but when I'm not doing anything and want them to come lay by me they don't care and just ignore or and walk off, or run away from me. Is anyone else cats like this?
Yes my cats like that too.
No my cat always wants attention
No my cats never want attention
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Why do cats always want attention when you are busy?
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