When your friends have planned something for you, it’s a sin to ruin their plans. My friends planned a birthday party for me last year, which happened to be just a few days before my dissertation submission date. I had to Write An Abstract For Dissertation, and I had planned to write it on the day when they had planned a surprise – a coincidence that put me in a difficult situation. Because my dissertation was important, and so were my friends. Guess what did I choose? Of course, the friends' plan. And about the abstract? I outsourced it to an expert who did a pretty good job with it.
By the way, that surprise was a great one – one that I will remember for the rest of my life.