Instead of wasting money on costly egg timers simply boil your egg to perfection by getting in your car and driving at 60 mph for exactly 3 miles. When you reach the 3 mile mark call your wife and tell her to take it out the pan.
I went to my doctor and he said he had some good news and some bad news. He said the good news was that he got my test results and I had two days to live. Then he said the bad news was that he has been trying to contact me for two days.