I was able to sell a lot of vegetables yesterday! I still don't know what to do with the wheel chairs though.
I don't think that's funny. Why would you suggest that disabled people are for sale?
Those crippled people are hard to sell but there are buyers out there.
I don't think you understand that disabled people have feelings too. How do you feel if people joke about selling you?
I would feel good that people think I am valuable, just like those vegetables they keep buying from me.
Disabled people are human beings that are not to be sold to anyone and joking around in this way marginalizes them. There are lots of other subjects to laugh about, so leave this one alone.