Project Estimations

When somebody watches over your shoulder, asking how much longer it will take; when it's three in the morning and you're patching a server; in short when you are under pressure, then you stop solving problems. Your brain is frantically looking for the quickest thing you can do to make the problem go away. You're not considering the whole matrix of solutions and consequences, of costs and benefits.

Mathias Verraes, The Cost of Estimation