Title text: FOR AN INTRIGUING TIME CALL
The humor in this comic comes from the irony of a deep philosophical musing on the nature of individuals sharing a private space in a public place, unknown to one another and separated by time. The graffiti text is juxtaposed with more common bathroom stall scrawlings - insults, slurs, and "[Name] was here."
This comic makes use of the existential idea of "finding meaning where you look for it", a recurring theme in xkcd. The caption implies that a bathroom stall isn't a place where Randall would like to find meaning in life, so he shouldn't look for it there.
The title text parodies one of the archetypical pieces of graffiti: "For a good time, call [phone number]", which indicates that the person reachable at that number is available for prostitution, casual sex, and/or phone sex. However, 'good' has been replaced with 'intriguing' time, implying that instead of sex the writer is offering witty and insightful conversation.
- [Cueball sits on a toilet in a bathroom. The stall sidewall next to him is covered in graffiti: 'you suck', 'Mike sucks cock', 'CUNT', 'dane was here' struck through and 'dane is a fag' written under it, a crude pictogram of a penis, and various other unreadable scribbles.]
- [One block of graffiti is salient:]
- This graffiti is
- fleeting human contact
- both of us lost,
- but for a moment
- we're lost together.
- I wonder who you are.
- I think I look for meaning in the wrong places sometimes.