at the start of the blueshift game while your still topside enter the noclip cheat and fly over to the 2 scientists next to the black mesa flag.

a conversation will start up

scientist one:Your not going soft on the ethics issue are you?

scientist two:The evidence is inconclusive

scientist one:Yes very interesting

scientist two:The evidence is inconclusive

scientist one: you know you repeat yourself sometimes

scientist two:i dont think so.

the conversation takes random bits of scientist speak and inserts it into the conversation scientist twos lines are set so is scientists ones 3rd line