caffeine intake

I should have known my day would be a disaster when it started off by a gentleman at a convenient store, spraying pop all over me. Granted it wasn't his fault, the machine had run low. Once getting my diet coke, I have to listen to another man make stupid comments about how all that caffeine is gonna kill me. Only to mutter some likable response to amuse the man I stand in line to pay. If the guy only knew that I have to have some sort of caffeine in the morning to function. And if not function, help alleviate the stress from really making some snide comment in return.
He's now in line behind me, coughing, hacking, and complaining about this summer cold, that he's been taking meds for. All the while, thinking... if you get me sick, I will seek you out. I don't need a cold on top of allergies. Again, he makes a comment about my caffeine and how he doesn't touch the stuff. So politely I again, smile in his direction and said, you wouldn't want to be around me without at least one in the morning. As he chuckles, he is stopped by gasping and coughing and carrying on. Literally almost doubled over and holding onto the counter for support. If I hadn't been annoyed, I would have felt sorry for him....ok I did feel bad for him. As I pay for my "stuff that will kill me," a former co worker walks in the door. We briefly give salutations, long enough for me to hear the man as for three packages of some time of camel cigarettes.......
WHAT!!!!!!!!!!!!!!!!!!!!!!!!!!!! This man has the freaking nerve to rant and rave about my caffeine, and he's buying cigarettes while coughing up what lung he has left.
The nerve of some people......