In one night, the first 2 is somewhat amusing. The next 2 will be side eyed. The next 2-3 will receive heavy complain and criticism. The next 5 will be met with physical violence.
If I manage to fart more than 12 times a night then it'll go back to amusing with a hint of respect and impressed.
However, at any point, if the fart is smelly then it's game over.