pat's law
Pat's law is simply this, when conducting a project, it is alway the last thing that goes wrong. and on this last miniscule task, you always spend 60% or more of your time on it. Making the last item in a string of items the last possible screw up. This also leads to PAT'S SYNDROME
"You have to drill five holes, the first four were easy and no problems occured. The last hole your drill bit breaks, you replace the bit, and then your battery goes dead. you replace the battery and the motor burns out." this is pat's law