Autoresponder
Autoresponder
[Cueball and White Hat are talking to each other while Cueball is typing on his smartphone. A dark-haired figure stands behind White Hat, drawn with thicker/rougher lines as if clad in bulky clothing; wearing spiky knee and elbow guards, a spike-embossed and notably scarred crash-helmet upon its head; and is holding a glinting sharp sword in its hand.] Cueball: Ready to go? White Hat: Yup! Can you email me the tickets before we leave? Cueball: Sure, one sec.
[The next panel is nested inside the first, although at first it just looks like two individual panels. This could indicate the second panel is an immediate response to the first. The armored figure aggressively moves forward towards Cueball, who drops his phone in surprise. The armored figure has its sword-arm raised, the other hand pushing White Hat behind it, by pushing him in the face which causes him to stumble backwards so his hat starts to fall off.] Cueball: Okay, I sent it to- Armored figure: It is outside work hours! Armored figure: Prepare to die! Cueball: Augh!
[Caption below the panel:] I always feel bad when I trigger my friends' work autoresponders.

Cueball and White Hat are going to some kind of show (a movie or concert, perhaps), and Cueball asks White Hat if he is ready to go, who affirms this but asks for Cueball to email him the tickets before they go.
When Cueball does this he apparently opts to send them to White Hat's work email address. When White Hat is not at work, he has an autoresponder activated that tells people to not disturb him as he is not at work. Usually this means that his email server sends an automatic response telling the sender of the mail that he is not at work, and not to expect an immediate reply.
But in this comic, White Hat has a physical autoresponder standing behind him, drawn as a human with thicker/rougher lines as if clad in bulky clothing, wearing spiky knee and elbow guards and a spike-embossed and notably scarred crash-helmet upon its head. It holds a glinting, sharp sword in its hand. When Cueball inadvertently activates it, it plunges forward to 'defend' White Hat from being disturbed by work related things during his spare time. It is so aggressive that it even violently pushes White Hat out of the way, with a blow to the face so that he falls back and dislodges his hat, as it prepares to confront the perpetrator, Cueball.
In the caption below, Randall states that he feels bad when he activates his friends' autoresponders. It is unclear if this is because he thinks he disturbs them with what they might think is work, because he then knows he will not get a reply or if he feels attacked (like Cueball in the comic) by their "aggressively worded" auto-replies.
In the title text Cueball shouts out (in all caps) to the autoresponder "I admire how you set boundaries and I hope your colleagues respect them! Please spare my life!"  He therefore thinks it is a good idea to have time away from work where you cannot be contacted by your colleagues.
It is unclear if the autoresponder is a human or a robot, but the open-faced helmet reveals the fringe and neck-length hair generally seen on female characters, although for instance Megan 's hair is usually longer and not so messy as this creature. This would be reminiscent of the Android series , especially 600: Android Boyfriend , where one of the androids moves past its owner.
[Cueball and White Hat are talking to each other while Cueball is typing on his smartphone. A dark-haired figure stands behind White Hat, drawn with thicker/rougher lines as if clad in bulky clothing; wearing spiky knee and elbow guards, a spike-embossed and notably scarred crash-helmet upon its head; and is holding a glinting sharp sword in its hand.] Cueball: Ready to go? White Hat: Yup! Can you email me the tickets before we leave? Cueball: Sure, one sec.
[The next panel is nested inside the first, although at first it just looks like two individual panels. This could indicate the second panel is an immediate response to the first. The armored figure aggressively moves forward towards Cueball, who drops his phone in surprise. The armored figure has its sword-arm raised, the other hand pushing White Hat behind it, by pushing him in the face which causes him to stumble backwards so his hat starts to fall off.] Cueball: Okay, I sent it to- Armored figure: It is outside work hours! Armored figure: Prepare to die! Cueball: Augh!
[Caption below the panel:] I always feel bad when I trigger my friends' work autoresponders.
