And just to demonstrate the universality of the human condition... just yesterday I was having a rant about (a) everything being always underbudgeted because the cheapest quote usually wins, so everyone underquotes hoping the client changes their mind and the resulting variation(s) swing the needle into profitability, and (b) that there's also a tendency to create artificial urgency (unrealistic deadlines etc.) in order to try and extract greater productivity from your workers.

Hanlon's Razor would tend to discredit (b) but I've seen it in action too many times to fully accept this...