Apparently I have a twin

Ruth asked me to pick up a couple of things on the way home from work. So, I'm in the grocery store, and get to the checkout line. There's only one person in front of me, and she's busy paying her bill.

The cashier looks at me, and says "Hi, how have you been?", with a big smile as if she knows me.

 I say "Fine, thanks, and you?"

She says "Oh, you cut your hair...can I see?"

I figure, okay...I'll play along. So I turn around and show her the back.

She says "It was so long, does it feel different?"

I say "I don't know, it's been this length for about 10 years!"

It was too funny. She would've bet money that I was this other guy who is a regular customer. So apparently I have a twin!