I went to a different supermarket than my local and when I approached the checkout aisles, one of them had a disabled access sign, so I moved to a different checkout.
The girl on the check out called me over, so I figured it was okay, and maybe it just had a wider aisle but was not for the sole use of disabled people.
As my stuff was nearly being finished a lady in a wheel chair came up behind me and asked (fairly loudly) if I was a moron or just f*^%#}g blind as it was a disabled checkout only.
I replied that I was directed to use this checkout, to which the lady started ranting quite nastily to the young girl.
I paid for my stuff and left while the manager wa trying to calm the lady down and he DID say it was for better disabled access but not the for the sole use of disabled people.