I work at a retail company, currently studying computer science. While at work, a customer came to the register, handed me the product and a screen shot from her e-mail which stated she needed flash in order to view her coupon.
Me: I'm sorry, it looks like you need flash in order to see the coupon
Her: It's right here though!
Me: Unfortunately, I need to see the barcode, or at least what the coupon was for if you want to get the deal.
Her: Well...here, I'll bring up my e-mail for you
At this point she pulls out her iphone and starts browsing
Me: That isn't going to work
Her: It's right here, one second
Me: No, you don't understand, Flash isn't supported by the iphone.
Her: No, my e-mail is right here
Me: Trust me, your phone is incapable of bringing the coupon up.
Her: Here it is! (she clicks the e-mail)
(pause 6-7 sec)
Her: Huh? It doesn't work, says the file only partially loaded
(she tries refreshing it several times)
Her: Well, I'm not going to pay full price for that.
And off she went