Your whole "I dress like an office drone and act respectable and then sit on forum where we discuss urethra fucking and public torture" bit still creeps me out. I bet it would creep out your co-workers even more.
all sports threads. most of the image forum threads.
most things in the main forum that look like they're probably just an article. I usually show up late to those threads, if Brett happens to mention something going on in them.
I don't click on cruncle's lottery threads unless they have a few posts. That (usually) means someone actually won, so I won't (usually) be subjected to some nasty, fucked up picture.
I prefer the more personal threads - things that are relevant to the people posting, rather than a rehash of something on fark.
Also, if a thread devolves into boring, ridiculous, nitpicky, redundant flame wars, I will normally stop clicking on it.
The late 90s and early 00's are over, guys. Save your flames and jabs for when they count. Otherwise, you just look like disingenuous chest-puffers. Lame.