The problem is usually the site and not the user...
reasons...
Your site has used more than 20% of the cpu.
Your account has too many processes running at the same time.
Your site was consuming too many resources. This happens on occassion to very busy sites that have inefficient scripts running.
I like beer. On occasion I will even drink a beer to celebrate a major event such as the fall of communism or the fact that our refrigerator is still working.