Two Project Managers are building a house
Casey wakes up early to start siding the house.
Dryden follows an hour later and, while sipping coffee, notices that Casey is rejecting about half of the nails.
"Why are you rejecting all those nails - those things aren't cheap!"
"The point is on the wrong end"
After a little thought . . .
"Those are for the other side of the house!"
