Run, run ! What a bullocks ! I've never had that asked (and I'm at my 7th (or so) job now. If I would be asked that question, I would ask the guy on the other side of the table to show his company accounts, just to check if he would be able to pay me. See how they respond to that....
I've once had a job interview and after already slow communications through mail, the woman simply let me wait for 45 minutes in her office after the agreed time. I figured, if she can't manage THIS, how does she manage the rest ? So the interview went pretty bad as I expected. When I told (_almost truthfully, we all bargain in negotiants) my current salary she went a bit pale in the face. At that time I was managing a 2nd line IT support desk and had 8 people working "under" me. The job I was applying for was managing a team of about 30 people.......So she expected to pay me less for a lot more responsibility and the new job would not even include a company car...
At the end she told me she would contact me within two days. Guess what, no call. Then after more than one week she calls at night time and says she wants a second talk. I said, OK and we fixed a time. I didn't go. Hope she figured it out....