Cripple Credentials
Proof, lest ye be scorned, that you need a wheelchair, a walker, a cane, a neck brace...ANYTHING to validate parking in the handicapped parking space, or sitting in the handicap seats on any public transportation!
If people don't actually SEE your disability, you are looked at with absolute discuss, even hatred! You need "Cripple Credentials" before people will mind their own business!