[jmpeax]

"If you refuse to estimate, you’re forcing someone less technical to estimate for you."

This is the perfect approach, given that estimates are top down and work to fill the estimate is bottom up.

"When I estimate, I extract the range my manager is looking for, and only then do I go through the code and figure out what can be done in that time."

[inadequatespace]

Except managers also have expectations of what can be done