Father: Why did you fail your mathematics test?
Son: On Monday, teacher said 3+5=8
Father: So?
Son: On Tuesday, she said 4+4=8 And on Wednesday, she said 6+2=8.
If she can''t make up her mind, how do I know the right answer? ;->
Engineer: a person who knows a great deal about very little and who goes along knowing more and more about less and less, until finally he knows practically everything about nothing.... ;->