JKR's live chat -- excerpts

[lmf3b]

No: HPFGUIDX 174253

 
> > (Lisa's note:  She originally said that Ron and Harry were aurors, 
> > but now she's saying that Ron went into business with George)
> >
> 
> I don't see how that is contradictory...Ron has a job with the 
> Ministry. That probably won't preclude him from owning shares in 
> George's business or even helping out with the business on weekends 
> or vacations. Heaven knows I've helped friends and family members 
> with their businesses in my spare time....

It also may be that Ron's work as an Auror  was a natural fit with the 
joke business...  remember how the ministry and the Order found Fred 
and George's products helpful for disguises and self-protection. Ron's 
role in helping Fred may have been in facilitating sales to Auror and 
in general research and development.

Louise