Well, I guess you can’t do that to infinity without impacting the ability to pay dividends back, Rob, but honestly I don’t think, you know, if you look at our track record, in terms of what we’ve done with dividend increases and you know, I think that’s probably always the best indicator of what we’ll do in the future. The one thing that’s kind of interesting about where we sit from the amount of options that are still outstanding and have yet to be exercised, I want to say there is about $15 million, 15 million, excuse me, shares of options that are outstanding, about 12.5 or so are vested and the other, the remainder unvested. But we’ve kind of weeded out, if you will, sort of the low dollar option amounts. So the options that are being exercised today come with, you know, option prices at the $80 plus per share for the most part. So you know think of the incremental difference between sort of buying back the shares to offset the dilution and the price of the options that are being exercised is maybe less than they would have been years ago when we had some options at the $35 to $45 levels. So that’s something to mitigate. What you might think of in terms of the overall level of cash sort of required to continue to share repurchases. At this point I think we’ve got the flexibility to do that. we're still looking at, you know, with the guidance we’ve provided this year, $4.2 billion, our overall capital, you know, somewhere in the billion dollars, maybe a little less. So free cash flow of $3.2 billion we started out, I think we’ve got what, $2.8 billion on the balance sheet as we ended the quarter. So, you know, I still think we’ve got the fire power to continue to do that going forward in part because of the reasons I’ve just said with the benefits coming from those options when they are exercised.