Your roommate uses your microwave in the morning while youre still sleeping going home next week should you take because there is a community dorm Is it rude?

It's generally not considered rude to use a shared microwave in a dorm setting, especially if you're asleep and it's not impacting your use of the microwave. Taking it because you're moving out next week is another matter. Since it's a community microwave, taking it with you would be very rude and inappropriate. It belongs to the dorm and other residents.