Dancing feels really awkward for me. I don't even suck at it, i just end up not dancing because I feel awkward and then people think that it's because I don't want to dance with them which isn't true!
I hear a lot of popping when I'm engine braking. It's pretty much non stop above a certain RPM. The popping from the intake is actually louder then the popping from the exhaust. Though I get a similar but much quieter popping at idle from the intake and exhaust both.
While that is awesome, it's unrelated to LFS. Unless you're suggesting that we should be able to create whole cities, have hundreds of cars of AI traffic, and fly a helicopter around.
You should probably talk to your doctor. Insomnia is an actual sleeping disorder. Maybe you can't fall asleep for a different reason. That's why you should go to your doctor.