What is the longest running lie you have continued to tell?

I said this story before and I'll say it again. I broke my foot back in middle school and had to wear an ugly boot and walk with crutches. My dumbest girl friend asked what happened after I got the boot and I told her I had to get it amputated because I lost blood flow. Monday comes and I go to school and totally forgot about my little joke, honestly I thought she knew I was joking. My locker was decorated out the whazoo with apologetic cards, I was assigned a student in each of my classes to carry my books, I could come in late, or leave early, I could basically get away with murder. It spiraled out of my control so I just rode with it for weeks. Even the principal showed his support and consolation towards me losing a foot. I remember the day my closest teacher found out it was just a broken bone. He advised I played it off as a miracle, which I did, to this day.

/r/AskReddit Thread