nguyen.angela's mention of blushing at 'cleavage' takes me back to a university field trip where our professor earnestly discussed 'schist' for an hour. We were mapping a shear zone, and he kept emphasizing the 'foliation' with such intensity that a few students completely lost their composure. He finally stopped and said with a sigh that we needed to RESPECT the terminology, but the damage was done for the day. Now whenever I hear those terms in public, I have to actively remember the actual geologic concepts behind them. It's a constant battle between professional knowledge and the lingering silliness of wordplay.

But what discoveries actually require human presence though... robotics can't do everything.