When I was a teenager, I drove my parents with "I don't know" (actually, it probably came out more like: I dunno). How was school? I dunno. What would you like to do this weekend? I dunno. Did you study for midterms? I dunno. Where were you last night? I dunno. They made a strict rule that I could not say I don't know. No matter what, even if I legitimately didn't know something, I had to say something like "I can't answer that at this time, but I will look it up". Corny, yes, but it was a good lesson and I haven't been able to say "I don't know" ever since.

In t, I want to say it often, be even there, I can't bring myself to. So, I have to figure out the answer (usually the question is: How does that make you feel? And I often really don't know the answer, but have to come up with something).