Lifestyles of the poor and nameless

I know that cell phones are pretty common in our society...seems like everyone has one and they're always yakking away at inopportune moments...or the phone rings at the worst times.
But does the commonplace nature of cell phones give people the right to just cut you off when you're in the middle of a conversation? (especially when they're interrupting your daytime minutes?!)

The train was on the platform waiting to leave. I had about 6 minutes before we left the station. I was on my phone talking to my dad. I walked onto the train, still speaking to him. Then I decided "no need to sit inside yakking away for all to hear, when I can stand on the platform as I wait for the train to leave". A man saw me walk on and walk off the train. He saw that I was on the phone. He then proceeded to interrupt my conversation to ask me why I got off the train. But of course, I couldn't really understand what he was saying, so I asked him to repeat it a couple times. When I finally figured out what he was saying, I told him "I got off the train because I'm talking on my cell phone." He said "oh" and walked away.

Ugh. Somehow that just seems so rude to me. This is not the first time it's happened. I'll be minding my own business, engaged in conversation, and someone will interrupt me to ask some trivial thing. If it's an emergency, then I will interrupt someone, but with all these people all over the place, why would I pick the one who is obviously busy?

The other pet peeve of mine....even more egregious than the cell-phone-interrupter, is the person who stands right next to you and starts smoking. How rude can you be? I remember one time I was using a pay phone and a guy started using the pay phone right next to mine. Next thing I know, he lights a cigarette and starts puffing away. I mean, really. It's bad enough that the unwritten smoker's handbook mandates smoking in doorways, such that non-smokers must pass through clouds of smoke to get to their desired locations, but must they be so insensitive as to bring the smoke right to me, forcing me to move?!

For the record, I started coughing away while I was at that payphone with the smoker and he ignored me. I then asked him to put it out and he pretended he couldn't hear me. Rude! I think that would have been a good Seinfeld episode. Maybe I will walk around with a pocket fan and aim it at the smokers when they stand near me.