It's on Virgin Media VoD.
A guest, who looks like a trampy Jesus impersonator, heard two security men talking about "doing" the special(?!!) SCD ...and this guest thought it would be great to have SCD with ...people with special needs ...a "special" SCD, with ..

hilarious results
I have seen people in wheel chairs dancing before ...I don't see why it was so improbable that they would find it so hilarious