A sign at a business that does not allow pets says "Service Animals Only". One literal reading is that humans are not allowed in the store. Another is that it forbids servicing humans.
To start off, I have been asked to read a brief service announcement. The City Council would like to to announce the opening of a new dog park. Dogs are not allowed in the dog park. People are not allowed in the dog park. You may see hooded figures in the dog park. Do not approach the dog park. The fence is electrified. Do not, for any period of time, look at the hooded figures. The dog park will not harm you.
There's a Cyanide & Happiness comic that goes something like this:
"I help blind children."(click to show/hide)
I just saw an advertisement reading: "Today only iced donuts."