I know I said that this scene was my favorite from Mass Effect 2. And it was a very nice moment, and I liked how it demonstrated the roles even the most peripheral characters can play when given the spotlight. But I like this bit too.
Mordin's so care-free and vocal here that you almost forget he was project leader for the creation of a disease that rendered thousands of aliens infertile. The scamp.
The sad thing, no matter how much effort I put into this, we'll probably have to do the whole "obsessive research" thing over again when Mass Effect 3 comes out next March.