What would you do if you were $4 short on buying a iphone and?

What would you do if you were only $4 short on buying a new iphone 4. And, the sales guy asked "who has a dollar?" and his co-workers put in a dollar.
How would you feel? What would you do? Let them chip in & buy the phone or return when you have the full amount of money? Or what?

Let them chip in and repay them back.

If they were happy to do it and you didn't ask for it, I would accept it and thank them profusely.
If you had to ask "well, can someone else pitch in?" and they seemed upset about it, I would just return with the full sum of money.

I'd rather stick with Sony.