- I Am Not Shazam: A lot of people seem to get Mike and Dave's names mixed up, which is mildly justified, seeing as how they look exactly alike. So, remember; Mike is the Straight Man who hates his job, and Dave is the Cloud Cuckoolander who tries to make friends with all the dangerous aliens.
- Or you can just remember that Mike is Gordon Freeman.
- Also they have numbered armbands.
- Magnificent Bastard: Mike has this opinion about the Combine.
Dave: What do the Combine look like anyway?
Mike: You know, I'm not sure either. That's how good they are. It's not like they showed up themselves to conquer the earth. Oh no, they were kicking it back at their home world, sipping alien martinis, while they sent another alien race, they had already conquered, to come conquer us, for them! Now that's just slick.
Dave: Wow. And now we're working for them.
Mike: Yeah. It's the pyramid scheme from hell.
- Family-Unfriendly Aesop: "Killing five billion people did wonders towards solving our social problems!"