Not sure I should post this

I run several large analytical machines. We pay for 24/7 service at a great cost. I'm well versed with th machines with 30 yrs operation.
One went down and my tech called me. I went through everything, including checking it was plugged in. Couldn't get it to work. CAlled a service engineer, who expected the worst, 'cos he knows my experience. After several minutes he also checked the plug, turned the plug power on. Smiled at me and walked away laughing

Cindy