Wait till you have the whole band waiting on you to start and you can't get any sound out of your amp. Then you remember you had made a couple of pedal board modifications, so you are checking those connections apologizing while everyone else is standing around. Then you decide it must be the cable between the pedal board and the amp, so you grab a new one out of your bag and replace it and still no sound. You keep strumming and nothing is coming out out of the amp and you are getting more and more frustrated. And then... after five minutes of anguish the bassist walks over and stands in front of you looking at you with pity in his eyes. He reaches down to the side of your guitar and takes the end of the guitar cable that is flopping around the strap button, and plugs it into your guitar which all of the sudden comes to life. Then without a word he turns around and goes back to his station.