Well at least...

We know that someone from the brotherhood didn't make this egregious spelling mistake.

IBEW/NSFW!

I BIG ENORMOUS WANG!
IBEW sure gets jerked around, er, as far as construction graffiti is concerned. Heh.

C++ graffiti

"This was photographed under an overpass in Palo Alto near a CalTrain station. Only in Silicon Valley" via BoingBoing

Political Fridays.

Yikes.

Namibian Lottery

Hi Sirs I have a fortune that I must split with an amarican and you are the one that I have to choose so please give me your social security number and your address so that I might not confuse you with someone else because this fortune is half yours- I need your bank account number and pin so I can wire transfer the money.

Yours in fortune
I.P. Daily

What would Dan Brown do?

Probably make a reference to the occult and write something in a code below...maybe it's written in DA VINCI CODE!! Wait, an Obama reference too?

Bombs away.

I told you I had loads of offensive material.

Cute pup..

I guess it does tricks too!

Gamer graffiti d00d

I have nothing to say but guard your crocolisk! We have a level 14 knight elf pimp on the site and he's telling people to eat his nuts!

Construction Hoist Graffiti

He may be sad at work, but he's in the Operating Engineer's Union, so he offsets those tears with the laughs you can hear all the way to the bank!