We saw a pedestrian crossing sign in Seattle where the figure was holding a take out cup of coffee. Watch out for Starbucks drinkers, maybe?
No discussion of highway signs can be complete without acknowledging the random dude who edited an official Caltrans highway sign to make it more clear. His edit lasted 8 years, and when Caltrans finally updated the sign they kept his edit and made it official.
^^ great story @anomander!
@ucbalumnus : That has always been one of my favorite signs. For those of you not familiar with the Bay Area, it’s actually not as wacko as it seems. The signs are found on a short stretch of freeway in Alameda County where the two routes are the same road and both essentially head north before 80 (which came from San Francisco across the Bay Bridge) continues its way east across the country and 580 (which came from the south and east of the greater Bay Area) goes off the left to head west to Marin County across the Richmond-San Rafael Bridge. Both are completely correct, but the juxtaposition is a bit mind-boggling. Hey; we’re California. We do that stuff.
This is a hysterical song about road signs! You have to watch the whole thing 
Those deer signs are nice, but nobody warns you to be careful entering your own driveway. Fortunately I didn’t zoom into ours (uphill, side facing away from the cul de sac curve) or I would have been explaining how I hit a deer a few feet from the house.
More than a few people have wondered out loud why they would put up a “Deer Crossing” sign, when it’s clear deer can’t read it.
A few years back, in England I saw a sign next to a freeway offramp at a rest area: “No Football Coaches.” Took me a while to figure out they were prohibiting soccer fans’ busses, not Vince Lombardi et al.
I-94 in Michigan offers tense travelers a convenient place to relieve a little stress:
https://www.google.com/search?q=climax+michigan+sign&client=ms-android-virgin-us&prmd=imsvn&source=lnms&tbm=isch&sa=X&ved=0ahUKEwiIr_v8mMTWAhXF24MKHet3DAkQ_AUICygB&biw=320&bih=440#imgrc=Aelrj8svuisaYM:
^^^^
“But officer, I was just following instructions.”
“But officer, I drove off the road a little bit because I was forcing myself to think about baseball.”
@surfcity, that’s hilarious! Very clever. 
This thread was much more amusing than I suspected!
I saw a sidewalk sign today: on a tree, warning of falling walnuts. I thought it was a bit redundant, given all the evidence on the ground, but I thought it was funny and appreciated the attempt to make sure pedestrians know they might get bonked in the head.
My local favorite
Can’t they make up their mind?
Here’s another sign I see periodically. It always makes me think there are some sort of British roadworkers up ahead.
http://shenandoahsentinel.■■■■■■■■■■/uploads/3/8/7/0/38702003/p1280446_orig.jpg
Mass Turnpike: “Hospital Camping”, Exit 8.
Which site do we want? Intentsive Care, Needle Mosquito Trail, Code Evergreen, Wilderness Dissection, or Isolation Cabin?
I chuckled at the a “Thickly Settled” signs in Massachusetts. Has a different and very oldy worldy sound to it. I think those signs are unique to Mass. Other states use “Residential Area” or “Congested Area”.
Here in the Detroit area there’s are still a few motels whose signs tout the fact that their rooms have color TV’s. What’s next, flush toilets?
In San Diego, there’s a freeway sign near downtown that says “Cruise Ships Use Airport Exit.”
In Shanghai the other day I saw a highway sign “Pilot Free Trade Zone”.
A hyphen would be useful, but where?