Trick?

As far as I know there is no trick.  The house inspection was today.  I was there at the end of it meeting a buyer of some stuff I had on a facebook sale site.  When they were done they came and asked me what the trick was to the garage door and the opener.  Seems the inspector made it go up and go down and then up again.  Then when he tried to make it go down again the gpf tripped on the outlet and would not reset.  I had to have looked dumbfounded.  There is no trick.  I don't know why the outlet developed a problem  It worked fine the day before and it worked for the inspector until it didn't.  I'm always amazed when people more in the know than me ask me questions like that.  So then they left. 
When I was finished with my buyer I plugged the opener into a different outlet and lowered the door.  Problem solved for the moment. 
I also loaded up most of the clothing in the car and drove it to one of those donation boxes for clothing.  Got rid of that whole pile.  The pile inside the garage is getting smaller.