Check Writers

So I'm at work and this elderly woman comes to the counter.  I ring her purchases and ask the appropriate questions, i.e. Did she find everything she was looking for, and would she like a bag, etc. I total her transaction and she starts to write out her check.  First, most people never have a pen and naturally assume it's something that I should provide them because they came into our store.  She was such a person. Then I noticed she was writing on the front of her check the information I needed to put into the register.  This creates an additional step as I try to explain that the check is put upside and I am unable to see what's written on it.  I asked for indentification only to have her make a catty comment which I didn't hear.  I quickly put in the information from the ID she presented, thanked her, and moved on to the next transaction.  However, I believe that if you write out a check it is ypur responsibility to cooperate with the cashier and not be rude or snippy.  There is no call for that.  Unfortunately I have taken many comments from some pretty ignorant people and since they come into our store daily they realize the procedures and are only trying to tick me off.  If you're gonna write a check don't be an ass about it.  Blame the company and not the cashier...

Have a good night!