My favorite is when electricians run Cat5 for doorbells! Even better is when they try to terminate the Cat5 at a RJ11 phone jack and the colors don't match up...
"Let's see, orange kinda looks like red so I'll use that for the red. Green is there, no problem. The brown looks close to black so I'll match them up. Don't really have a yellow so I'll use blue for that. What do they use all these extra white wires for?"
