Did I Really Just Say That?

My feet are killing me. I'm on my feet all day, and my new shoes are not broken in. As I was gallivanting across campus today, I saw the three flights of stairs ahead of me that I had to tackle. I thought, no way, I'm taking the elevator. I always feel guilty taking an elevator when I don't really need it, but today I did. As I stepped on, someone in a wheelchair came in behind. I instantly felt like a lazy piece of crap. He then said, "How's it going?" Then in my typical nervous banter I told him my feet were killing me and I just had to take the elevator today. I was complaining about my feet hurting to someone in a WHEELCHAIR. He can't even use his feet and I'm complaining about overusing mine! I immediately felt like a total idiot. Note to self: Keep your mouth shut more often.