A hoax.
People are not always who they seem on the internet.
"Dave on Wheels" was a fiction and "David Rose" exposed as a fraud, as this article in the Huffington Post sets out.
Rather than simply delete this post, I thought I should update and correct it.
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Hey ... and I thought I was having a bad day! David's humour and cheerfulness puts me to shame! Some people are just inspirational. I've been reading some of David Rose's blog posts and "About David". Take a look for yourself.
"David Rose is a young man who was born with severe athetoid cerebral palsy and profound deafness, but he hasn't let that stop him from living life to the fullest and enjoying every minute."
"Feel free to friend him on Facebook and/or follow him on Twitter.