Blame
Blame
[Cueball stands.] Cueball (thinking): I feel sad. Cueball (thinking): Bad things are happening.
[Cueball still stands.] Cueball (thinking): They must be someone's fault. Cueball (thinking): But whose?
[Cueball makes several thinking poses before a light bulb appears over his head.]
[Close-up of Cueball's head.] Cueball (thinking): My friends on Facebook.

Cueball is blaming his "friends on Facebook " for "bad things [that] are happening".
People often rant on social media sites (like Facebook) about various things which are blamed on certain people (or sometimes usually everyone), but the person doing the ranting never thinks that the problem might be with themselves.
While there could be possible reasons for bad events (for example if the bad event was nobody wishing him a happy birthday or someone posting compromising pictures), his friends would not be a likely source for bad events extending beyond a personal or local scope. Most people have a few hundred (or thousand) "friends" on Facebook, most of whom do not have enough influence to cause bad events on a national or global level. [ citation needed ]
The title text refers to people venting. The humorous assumption here is that one will feel better after doing so. While some amount of venting might help to relieve stress caused by bad events, alienating people you know by blaming them for bad events usually causes more stress in the long run.
[Cueball stands.] Cueball (thinking): I feel sad. Cueball (thinking): Bad things are happening.
[Cueball still stands.] Cueball (thinking): They must be someone's fault. Cueball (thinking): But whose?
[Cueball makes several thinking poses before a light bulb appears over his head.]
[Close-up of Cueball's head.] Cueball (thinking): My friends on Facebook.
