Do you know anyone in a band who can perform at a moments notice like that? Do you know anyone who knows someone who can? I'd judge it as unlikely. Not impossible, but very improbable. The balance of probabilities is that it was set-up, just like the van being left with him and all the later...
Thanks for that link Derek500! There's a group on Facebook that is promoting Sal's return to Madmen! http://www.facebook.com/group.php?v=wall&ref=search&gid=291521899466
Err, there is quite a long list or 'productive' people who used quite a lot of drugs. Writers, poets, artists, film directors, musicians, comedians, the list goes on...
A gynecologist. I like stank and clean. So it's win win.
Either that, or just anything in computers. Preferably videogames since I've been such a huge game geek for the past 20 years.