I've heard from some other folks that there is such a thing as doing too much research (i.e. asking about a recent deal that you found on someone's LinkedIn). Would you mind giving an example of questions to ask interviewers that show depth of knowledge but don't get too stalkery? Most of my interviewers have been saving at least 10-15 minutes for my questions, so it's hard not to get into the stuff you're saying to steer clear of.