Multiple technical interviews is kind of silly anyhow. Sounds like an ill-run company. Only one technical interview is really necessary. If they don't value the

Multiple technical interviews is kind of silly anyhow. Sounds like an ill-run company. Only one technical interview is really necessary. If they don't value their employees time or candidates time (the hiring process takes both), then I'd forget the whole thing and wouldn't let yourself get baited again by overly technical interviews. Just get up and announce, "I'm not interested in wasting time, you can figure out my intellect in 10 minutes if you had someone even half-my-wits."