I'm at the gas pump and I'm going to use my phone.
Why on earth would you do that?
I feel like using my phone let's people know I'm important and don't care about paying attention to the pump.
You don't have to do something dangerous in order to feel important. You're putting your life, as well as the lives of others, at risk by being inattentive. There are other ways to get your message across.
I just wanted everyone to know that I'm better/more important than them.
You're not better than them, but I understand wanting to feel a sense of important. That said, using your cell phone while pumping gas risks others is dangerous and selfish. In fact, people will probably look down upon you if they see you doing this.