When people choose to smoke right beside me. I hate the smell of cigarette smoke. As soon as I breathe it in, my stomach starts to turn and I feel like I don't want to breathe in. Even breathing in smoke for a short time will cause me to cough and hack for a couple of days.
Just today, I was trying to put groceries in my car and this guy lit up right by me while he was putting groceries into his car and I had to breathe it in the entire time. Yuck. I just wish people would be more respectful when they are in public places and there are people right by them.