Phone in my pocket

It's Thursday, one day past the midday of the week and I already feel as if it is Monday all over. I am mindlessly driving back from class, listening to the latest John Grisham novel on CD, when my phone rings. I didn't hear it at first as I was focused on the plight of the heroin as she tries to outsmart her male nemesis in the court room, then the CD pauses and I heard the musician Pink say "I'm in trouble now, yeah trouble now". I immediately knew it was mom calling and picked up the phone. Here is a transcript of our conversation:

Erin: "Hey Mom, whatcha doin?"
Mom: "Just laying here. I had my phone in my pocket and thought I would call."
Erin: "Ummm...okay. That is an interesting excuse. How are you calling me if your phone is in your pocket?"
Mom: "Well, I was feeling tired, laid down and thought, hmm....wonder if...then realized that I had my phone in my pocket and I didn't have to get up. Thought I would call and let you know something. Nothing too big, and I love..but I just wanted to tell you."
Erin: "Good God. Did someone send you a card with some kind of story about me? If so..there all true I promise. [grin..mom laughs]"
Mom: "No..No. This is funnier. You know how you had the wrong zip code and how you put 'cars' instead of 'cards' in the text of the email that you sent out asking for my birthday wish?"
Erin: "Yeah." [I breathed as I winced under the pressure of what else I must have messed up on this effort]
Mom: "Well, you made me a year younger. You do know that I am actually 55 not 54 don't you?"
Erin: "Oh my God! Your right. When I wrote the email, I was in a hurry and emotional. All I thought about was the fact that you were 21 when you had me, and that I am now 33, therefore you should be 54. I never even considered the fact that I was born in November and your birthday is in February. I am sorry...I guess that means we are celebrating your 2nd anniversary of your 54th birthday."
Mom: "That's okay..it gave me a reason to call you and the phone in my pocket just gave me the opportunity."