They definitely don't check the signature. About a year ago, I altered the way I sign cheques. I used to sign my full name, now I just initials them. I got not problem, no cheque bounced.
Only you can define what your signature looks like. That is why you didn't have any issues. They don't check the signature against anything, if that's what you mean. See this comment: http://news.ycombinator.com/item?id=4345214
A few years ago, I was going through the process of changing my name. I was endorsing checks with my new name and depositing them into accounts with my old name -- a completely different name, and still no problems! I imagine this happens fairly often with newly-wed women.
Also, the signature on my current driver's license is a squiggly line.
> Only you can define what your signature looks like. That is why you didn't have any issues. They don't check the signature against anything, if that's what you mean. See this comment: http://news.ycombinator.com/item?id=4345214
This may be mostly true, or even universally true now, but it hasn't always been. I remember trying to make some major modification on an account with a local bank in Chicago around 2000 --maybe closing it?-- and the bank officer with whom I dealt actually brought out a physical record of my signature to compare against what I was currently signing. (Since I'd opened the account some years ago, it took me a long time to guess how I'd signed back then and to reproduce it successfully. For some reason, the officer was perfectly willing to let me try until I satisfied her, but not to accept that I was who my ID said I was.)
Same thing with credit cards. Most vendors don't event check if you signature matches the signature that is on the back of the card. (not that it proves ownership.)
I deposited a check at an ATM recently and it was rejected (by the ATM itself) because it was not endorsed. It wasn't and I seriously doubt this is anything more than a check for some ink on the back in the endorse-here area.
The ATM then tried to return the check to me, but there was some kind of paper feed error and I never saw it again.