When Fellow Developers Tell You "I don't remember/know" and they -Do-

I always love it when a fellow developer tells you at times he/she "doesn't recall" or "doesn't know" when you ask them a question (after doing your own research) based on something they clearly have done in the past (which is why you are asking them in the first place). Maybe that person you are asking mentioned it to the team or you in the past that they have done something like that, or you actually see it in use on their own web site. Whatever the case may be, you know that they DO know something about it, and that they are just being lazy or difficult.