A group of managers were given the assignment to measure the height of a flagpole. So they go out to the flagpole with ladders and tape measures. There they proceed to fall off the ladder, dropping the tape measures, the whole thing is just a mess.
An engineer comes along and sees what they're trying to do, walks over, pulls the flagpole out of the ground, lays it flat, measures it from end to end, gives the measurement to one of the managers and walks away. After the engineer has gone, one manager turns to another and laughs.
"Isn't that just like an engineer, we're looking for the height and he gives us the length!"