Again, you don't need proof of disability to get a Radar key!
Shop Mobility usually have them, you fill in a form stating your name and address, there is a section to sign if you are disabled so that they can wave VAT.
"RADAR is obliged by law to add VAT to these charges. In order to receive a key free of VAT an individual must provide their name and address or that of the person who will use the key and make the following declaration in the comments box on checkout:
"I declare that I/the individual name above is chronically sick or has a disabling condition and is eligible to claim VAT relief for disabled people. The key for accessible toilets being ordered is for my/their domestic and personal use only"."
I'm wondering if there is a hierarchy of accessibility need. Should I be embarrassed if I hold up the toilet when someone in a wheelchair needs it? Or a parent of a 10 year who needs to change their nappy? I mean, I'm only on crutches so my need isn't as great as theirs, is it? Would you be cross if I came out?
How about if you waited 2 hours to use the toilet (like I did) then asked if it was locked to find that someone was semi-conscious on the loo?
Generally accessible toilets aren't that heavily used, I could count the amount of times I've had to wait for them and I don't complain that someone has been in to use the baby change facilities or even ask them if that's why they've been in there to make sure it wasn't so they could fit in.