Who is this Murphy, and why did he have this law?

So yesterday was my daughter, Taylor's, 7th birthday. Normally, I am at home all day, every day, unless it is grocery shopping day (a couple times a month). I decided to go have lunch with Taylor since it was her birthday. Wouldn't ya know, Dr. Fiegenbaum called right after I left the house. I called him back about 45 min. later and I left a message that I returned his call. Here it is Friday and still no call. I called him again, and the office staff told me that he wasn't in today. I will have to wait until Monday to call him back. This is the phone call to go over my 2nd MRI with him. Hopefully on Monday I will learn if surgery is an option for me, or what can be done for me.