"Sign, sign, everywhere a sign
Blockin' out the scenery, breakin' my mind
Do this, don't do that, can't you read the sign?"
You get the picture. A 1970 hit recorded by the FIVE MAN ELECTRIC BAND seemed to be a "sign" of the times. Not leaving a hint for this one but these final words (question).
Can't You Read the Sign?
Permit #19110CCSRP