I have a cell phone.  Sometimes I use it when in a store but we are talking like a non-intrusive call like this:

"Hi Mom.  I'm at the store buying a give for nephew 1.  What size should I get.  OK, thanks.  Talk to you later."

I never do this:

"And then Steve was so fucked up he didn't even know the name of that tramp he when home with..."

Why do people think that they need scream into their cell phones while shopping and let everyone else in the area in on their half of the conversation?  It drives me crazy.  I mean these people simply have no manners!  The worse thing to me is when they go to the check out, especially at the grocery store.  They can't be bothered to put down their stupid phones for a few minutes to interact with the human being ringing up their order.  I just find this to one of the most rude cell phone behaviors.  I just want to tell the rude person to put down their damn phone and pay attention to the person trying to assist them.  It just really pisses me off.

This is my rant for the day.