I'm thinking of lying on forms
What made you so sure that lying is the route to take?
The advantage is that the data are more complete. I don't like leaving empty spaces.
Forms are so hard to fill out sometimes. It's okay to leave empty spaces if you don't have anything to fill in for that item. Lying on the form will cause more problems than it will help.
It's okay, I'm so good at lying that no one can tell the difference.
The truth would come out eventually. You should not lie on forms because it is bad to lie.